diff --git a/content/en/api/datetime-format.md b/content/en/api/datetime-format.md
new file mode 100644
index 0000000..193e218
--- /dev/null
+++ b/content/en/api/datetime-format.md
@@ -0,0 +1,63 @@
+---
+title: Datetime formats
+description: Datetime formats
+menu:
+  docs:
+    weight: 10
+    parent: api
+---
+
+## Datetime {#datetime}
+
+A "datetime" specifies an instant in time.
+
+The string representation of a datetime uses the "Internet Date/Time Format" defined in [RFC3339 section 5.6](https://www.rfc-editor.org/rfc/rfc3339#section-5.6).
+
+To summarise, that is the following mandatory components:
+
+```
+[YYYY]-[MM]-[DD]T[hh]:[mm]:[ss].[s][TZD]
+```
+
+where:
+
+- `[YYYY]` = four-digit year
+- `[MM]`   = two-digit month (01=January, etc.)
+- `[DD]`   = two-digit day of month (01 through 31)
+- `[hh]`   = two digits of hour (00 through 23) (24 NOT allowed)
+- `[mm]`   = two digits of minute (00 through 59)
+- `[ss]`   = two digits of second (00 through 60)
+- `[s]`    = one or more digits representing a decimal fraction of a second
+- `[TZD]`  = time zone designator (either `Z` for UTC, or `+[hh]:[mm]` or `-[hh]:[mm]` to represent an offset from UTC)
+
+For example, `1994-11-05T13:15:30.000Z` (equivalent to `1994-11-05T08:15:30-05:00`).
+
+See [RFC3339 section 5.6](https://www.rfc-editor.org/rfc/rfc3339#section-5.6) for the complete [ABNF grammar](https://www.rfc-editor.org/rfc/rfc2234).
+
+### Interoperability
+
+- The date and time portions are always separated by an uppercase `T` (not lowercase, not a space).
+- The timezone designator `Z` is always uppercase, not lowercase.
+- The fractional (`[s]`) part of the second is represented with at least one digit and at most three digits.
+- A field may be presented as a datetime while having lower resolution. E.g., the server clamps the value to the midnight on the date in question.
+
+## Date {#date}
+
+A "date" specifies the calendar date an activity occurred, in UTC.
+
+The string representation of a date uses the complete, extended calendar date representation from ISO 8601, the International Standard for the representation of dates and times (section 5.2.1.1). This is also the "Complete date" format from [W3C Date and Time formats](https://www.w3.org/TR/NOTE-datetime).
+
+That is the following mandatory components:
+
+```
+[YYYY]-[MM]-[DD]
+```
+
+- `[YYYY]` = four-digit year
+- `[MM]`   = two-digit month (01=January, etc.)
+- `[DD]`   = two-digit day of month (01 through 31)
+
+### Interoperability
+
+- The year, month, and date components are always separated by a `-`.
+
diff --git a/content/en/entities/Account.md b/content/en/entities/Account.md
index eee5aea..e9ddb32 100644
--- a/content/en/entities/Account.md
+++ b/content/en/entities/Account.md
@@ -239,7 +239,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the account was created.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 0.1.0 - added\
 3.4.0 - now resolves to midnight instead of an exact time
@@ -247,7 +247,7 @@ aliases: [
 ### `last_status_at` {#last_status_at}
 
 **Description:** When the most recent status was posted.\
-**Type:** {{<nullable>}} String (ISO 8601 Date), or null if no statuses\
+**Type:** {{<nullable>}} String ([Date](/api/datetime-format#date)), or null if no statuses\
 **Version history:**\
 3.0.0 - added\
 3.1.0 - now returns date only, no time
@@ -411,7 +411,7 @@ aliases: [
 ### `mute_expires_at` {#mute_expires_at}
 
 **Description:** When a timed mute will expire, if applicable.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime), or null if the mute is indefinite\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)), or null if the mute is indefinite\
 **Version history:**\
 3.3.0 - added
 
@@ -434,7 +434,7 @@ aliases: [
 ### `verified_at` {#verified_at}
 
 **Description:** Timestamp of when the server verified a URL value for a rel="me" link.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime) if `value` is a verified URL. Otherwise, null.\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)) if `value` is a verified URL. Otherwise, null.\
 **Version history:**\
 2.6.0 - added
 
diff --git a/content/en/entities/AccountWarning.md b/content/en/entities/AccountWarning.md
index 4ede0d9..66345c5 100644
--- a/content/en/entities/AccountWarning.md
+++ b/content/en/entities/AccountWarning.md
@@ -64,6 +64,6 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the event took place.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.3.0 - added
diff --git a/content/en/entities/Admin_Account.md b/content/en/entities/Admin_Account.md
index a70293b..41f4974 100644
--- a/content/en/entities/Admin_Account.md
+++ b/content/en/entities/Admin_Account.md
@@ -101,7 +101,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the account was first discovered.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 2.9.1 - added
 
diff --git a/content/en/entities/Admin_Cohort.md b/content/en/entities/Admin_Cohort.md
index 0e8af76..3996498 100644
--- a/content/en/entities/Admin_Cohort.md
+++ b/content/en/entities/Admin_Cohort.md
@@ -85,7 +85,7 @@ Daily retention data for the week between 2022-09-08 and 2022-09-14, given that
 ### `period` {#period}
 
 **Description:** The timestamp for the start of the period, at midnight.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.5.0 - added
 
@@ -110,7 +110,7 @@ Daily retention data for the week between 2022-09-08 and 2022-09-14, given that
 ### `date` {#date}
 
 **Description:** The timestamp for the start of the bucket, at midnight.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.5.0 - added
 
diff --git a/content/en/entities/Admin_DomainAllow.md b/content/en/entities/Admin_DomainAllow.md
index 904210c..f385903 100644
--- a/content/en/entities/Admin_DomainAllow.md
+++ b/content/en/entities/Admin_DomainAllow.md
@@ -45,7 +45,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the domain was allowed to federate.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.0.0 - added
 
diff --git a/content/en/entities/Admin_DomainBlock.md b/content/en/entities/Admin_DomainBlock.md
index 07ca7aa..2d45993 100644
--- a/content/en/entities/Admin_DomainBlock.md
+++ b/content/en/entities/Admin_DomainBlock.md
@@ -59,7 +59,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the domain was blocked from federating.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.0.0 - added
 
diff --git a/content/en/entities/Admin_EmailDomainBlock.md b/content/en/entities/Admin_EmailDomainBlock.md
index 1eb6f18..7fa5bc1 100644
--- a/content/en/entities/Admin_EmailDomainBlock.md
+++ b/content/en/entities/Admin_EmailDomainBlock.md
@@ -82,7 +82,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the email domain was disallowed from signups.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.0.0 - added
 
diff --git a/content/en/entities/Admin_Ip.md b/content/en/entities/Admin_Ip.md
index c577405..6703e8a 100644
--- a/content/en/entities/Admin_Ip.md
+++ b/content/en/entities/Admin_Ip.md
@@ -37,7 +37,7 @@ aliases: [
 ### `used_at` {#used_at}
 
 **Description:** The timestamp of when the IP address was last used for this account.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.5.0 - added
 
diff --git a/content/en/entities/Admin_IpBlock.md b/content/en/entities/Admin_IpBlock.md
index 129ee6c..92f278b 100644
--- a/content/en/entities/Admin_IpBlock.md
+++ b/content/en/entities/Admin_IpBlock.md
@@ -65,14 +65,14 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the IP block was created.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.0.0 - added
 
 ### `expires_at` {#expires_at}
 
 **Description:** When the IP block will expire.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime)\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.0.0 - added
 
diff --git a/content/en/entities/Admin_Measure.md b/content/en/entities/Admin_Measure.md
index 9710552..86d26eb 100644
--- a/content/en/entities/Admin_Measure.md
+++ b/content/en/entities/Admin_Measure.md
@@ -63,7 +63,7 @@ aliases: [
 #### `data[][date]` {#data-date}
 
 **Description:** Midnight on the requested day in the time period.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.5.0 - added
 
diff --git a/content/en/entities/Admin_Report.md b/content/en/entities/Admin_Report.md
index 22f8cf1..a2b3e00 100644
--- a/content/en/entities/Admin_Report.md
+++ b/content/en/entities/Admin_Report.md
@@ -82,7 +82,7 @@ aliases: [
 ### `action_taken_at` {#action_taken_at}
 
 **Description:** When an action was taken, if this report is currently resolved.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime) or null\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)) or null\
 **Version history:**\
 2.9.1 - added
 
@@ -113,14 +113,14 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** The time the report was filed.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 2.9.1 - added
 
 ### `updated_at` {#updated_at}
 
 **Description:** The time of last action on this report.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 2.9.1 - added
 
diff --git a/content/en/entities/Announcement.md b/content/en/entities/Announcement.md
index aa58dde..0eb69a3 100644
--- a/content/en/entities/Announcement.md
+++ b/content/en/entities/Announcement.md
@@ -77,14 +77,14 @@ aliases: [
 ### `starts_at` {#starts_at}
 
 **Description:** When the announcement will start.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime) or null\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)) or null\
 **Version history:**\
 3.1.0 - added
 
 ### `ends_at` {#ends_at}
 
 **Description:** When the announcement will end.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime) or null\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)) or null\
 **Version history:**\
 3.1.0 - added
 
@@ -105,14 +105,14 @@ aliases: [
 ### `published_at` {#created_at}
 
 **Description:** When the announcement was published.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.1.0 - added
 
 ### `updated_at` {#updated_at}
 
 **Description:** When the announcement was last updated.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.1.0 - added
 
diff --git a/content/en/entities/EncryptedMessage.md b/content/en/entities/EncryptedMessage.md
index 1203d9f..2ae9328 100644
--- a/content/en/entities/EncryptedMessage.md
+++ b/content/en/entities/EncryptedMessage.md
@@ -78,7 +78,7 @@ This entity is currently unused.
 ### `created_at` {#created_at}
 
 **Description:** A timestamp for when the message was created.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.2.0 - added
 
diff --git a/content/en/entities/ExtendedDescription.md b/content/en/entities/ExtendedDescription.md
index deba14a..97b823f 100644
--- a/content/en/entities/ExtendedDescription.md
+++ b/content/en/entities/ExtendedDescription.md
@@ -26,7 +26,7 @@ aliases: [
 ### `updated_at` {#updated_at}
 
 **Description:** A timestamp of when the extended description was last updated.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.0.0 - added
 
diff --git a/content/en/entities/FeaturedTag.md b/content/en/entities/FeaturedTag.md
index d12f299..1ada8a3 100644
--- a/content/en/entities/FeaturedTag.md
+++ b/content/en/entities/FeaturedTag.md
@@ -57,7 +57,7 @@ aliases: [
 ### `last_status_at` {#last_status_at}
 
 **Description:** The timestamp of the last authored status containing this hashtag.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.0.0 - added
 
diff --git a/content/en/entities/Filter.md b/content/en/entities/Filter.md
index 1f6d4ec..603264e 100644
--- a/content/en/entities/Filter.md
+++ b/content/en/entities/Filter.md
@@ -70,7 +70,7 @@ aliases: [
 ### `expires_at` {#expires_at}
 
 **Description:** When the filter should no longer be applied.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime), or null if the filter does not expire\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)), or null if the filter does not expire\
 **Version history:**\
 4.0.0 - added
 
diff --git a/content/en/entities/IdentityProof.md b/content/en/entities/IdentityProof.md
index f54f029..ecd552b 100644
--- a/content/en/entities/IdentityProof.md
+++ b/content/en/entities/IdentityProof.md
@@ -45,7 +45,7 @@ Identity proofs have been deprecated in 3.5.0 and newer. Previously, the only pr
 ### `updated_at` {#updated_at}
 
 **Description:** When the identity proof was last updated.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 2.8.0 - added
 
diff --git a/content/en/entities/Marker.md b/content/en/entities/Marker.md
index 24d3dc2..ab69f45 100644
--- a/content/en/entities/Marker.md
+++ b/content/en/entities/Marker.md
@@ -40,7 +40,7 @@ aliases: [
 ### `updated_at` {#updated_at}
 
 **Description:** The timestamp of when the marker was set.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 3.0.0 - added
 
 ## See also
diff --git a/content/en/entities/Notification.md b/content/en/entities/Notification.md
index 687b558..f4de0d3 100644
--- a/content/en/entities/Notification.md
+++ b/content/en/entities/Notification.md
@@ -56,7 +56,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** The timestamp of the notification.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 0.9.9 - added
 
diff --git a/content/en/entities/NotificationRequest.md b/content/en/entities/NotificationRequest.md
index 5371503..e60d1a6 100644
--- a/content/en/entities/NotificationRequest.md
+++ b/content/en/entities/NotificationRequest.md
@@ -21,14 +21,14 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** The timestamp of the notification request, i.e. when the first filtered notification from that user was created.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.3.0 - added
 
 ### `updated_at` {#updated_at}
 
 **Description:** The timestamp of when the notification request was last updated.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.3.0 - added
 
diff --git a/content/en/entities/Poll.md b/content/en/entities/Poll.md
index 6d6d84d..2a514b6 100644
--- a/content/en/entities/Poll.md
+++ b/content/en/entities/Poll.md
@@ -52,7 +52,7 @@ aliases: [
 ### `expires_at` {#expires_at}
 
 **Description:** When the poll ends.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime), or null if the poll does not end\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)), or null if the poll does not end\
 **Version history:**\
 2.8.0 - added
 
diff --git a/content/en/entities/RelationshipSeveranceEvent.md b/content/en/entities/RelationshipSeveranceEvent.md
index 6074de4..8cca3d6 100644
--- a/content/en/entities/RelationshipSeveranceEvent.md
+++ b/content/en/entities/RelationshipSeveranceEvent.md
@@ -53,6 +53,6 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the event took place.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.3.0 - added
diff --git a/content/en/entities/Report.md b/content/en/entities/Report.md
index 314fe7c..7b8952b 100644
--- a/content/en/entities/Report.md
+++ b/content/en/entities/Report.md
@@ -72,7 +72,7 @@ aliases: [
 ### `action_taken_at` {#action_taken_at}
 
 **Description:** When an action was taken against the report.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime) or null\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)) or null\
 **Version history:**\
 4.0.0 - added
 
@@ -103,7 +103,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** When the report was created.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 4.0.0 - added
 
diff --git a/content/en/entities/ScheduledStatus.md b/content/en/entities/ScheduledStatus.md
index 93171ec..2cd8a08 100644
--- a/content/en/entities/ScheduledStatus.md
+++ b/content/en/entities/ScheduledStatus.md
@@ -74,7 +74,7 @@ Returned from `GET /api/v1/scheduled_statuses`:
 ### `scheduled_at` {#scheduled_at}
 
 **Description:** The timestamp for when the status will be posted.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 2.7.0 - added
 
diff --git a/content/en/entities/Status.md b/content/en/entities/Status.md
index cf0e2a2..dab7363 100644
--- a/content/en/entities/Status.md
+++ b/content/en/entities/Status.md
@@ -119,7 +119,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** The date when this status was created.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 0.1.0 - added
 
@@ -292,7 +292,7 @@ aliases: [
 ### `edited_at` {#edited_at}
 
 **Description:** Timestamp of when the status was last edited.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime)\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.5.0 - added
 
diff --git a/content/en/entities/StatusEdit.md b/content/en/entities/StatusEdit.md
index c12996e..32aef94 100644
--- a/content/en/entities/StatusEdit.md
+++ b/content/en/entities/StatusEdit.md
@@ -71,7 +71,7 @@ aliases: [
 ### `created_at` {#created_at}
 
 **Description:** The timestamp of when the revision was published.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**\
 3.5.0 - added
 
diff --git a/content/en/entities/V1_Filter.md b/content/en/entities/V1_Filter.md
index 000c444..f224445 100644
--- a/content/en/entities/V1_Filter.md
+++ b/content/en/entities/V1_Filter.md
@@ -62,7 +62,7 @@ aliases: [
 ### `expires_at` {#expires_at}
 
 **Description:** When the filter should no longer be applied.\
-**Type:** {{<nullable>}} String (ISO 8601 Datetime), or null if the filter does not expire\
+**Type:** {{<nullable>}} String ([Datetime](/api/datetime-format#datetime)), or null if the filter does not expire\
 **Version history:**\
 2.4.3 - added
 
diff --git a/content/en/methods/admin/dimensions.md b/content/en/methods/admin/dimensions.md
index 7e5e2ef..099d482 100644
--- a/content/en/methods/admin/dimensions.md
+++ b/content/en/methods/admin/dimensions.md
@@ -53,10 +53,10 @@ keys[]
 - `instance_languages` = Most-used languages from a remote server
 
 start_at
-: String (ISO 8601 Datetime). The start date for the time period. If a time is provided, it will be ignored.
+: String ([Datetime](/api/datetime-format#datetime)). The start date for the time period. If a time is provided, it will be ignored.
 
 end_at
-: String (ISO 8601 Datetime). The end date for the time period. If a time is provided, it will be ignored.
+: String ([Datetime](/api/datetime-format#datetime)). The end date for the time period. If a time is provided, it will be ignored.
 
 limit
 : Integer. The maximum number of results to return for sources, servers, languages, tag or instance dimensions.
diff --git a/content/en/methods/admin/measures.md b/content/en/methods/admin/measures.md
index 3f6a247..41b97ae 100644
--- a/content/en/methods/admin/measures.md
+++ b/content/en/methods/admin/measures.md
@@ -58,10 +58,10 @@ keys[]
 - `instance_followers` = Total local accounts followed by accounts from a remote domain within the time period
 
 start_at
-: {{<required>}} String (ISO 8601 Datetime). The start date for the time period. If a time is provided, it will be ignored.
+: {{<required>}} String ([Datetime](/api/datetime-format#datetime)). The start date for the time period. If a time is provided, it will be ignored.
 
 end_at
-: {{<required>}} String (ISO 8601 Datetime). The end date for the time period. If a time is provided, it will be ignored.
+: {{<required>}} String ([Datetime](/api/datetime-format#datetime)). The end date for the time period. If a time is provided, it will be ignored.
 
 tag_accounts[id]
 : String. When `tag_accounts` is one of the requested keys, you must provide a tag ID to obtain the measure of how many accounts used that hashtag in at least one status within the given time period.
diff --git a/content/en/methods/admin/retention.md b/content/en/methods/admin/retention.md
index c07dfa0..b5d4cf0 100644
--- a/content/en/methods/admin/retention.md
+++ b/content/en/methods/admin/retention.md
@@ -41,10 +41,10 @@ Authorization
 ##### Form data parameters
 
 start_at
-: {{<required>}} String (ISO 8601 Datetime). The start date for the time period. If a time is provided, it will be ignored.
+: {{<required>}} String ([Datetime](/api/datetime-format#datetime)). The start date for the time period. If a time is provided, it will be ignored.
 
 end_at
-: {{<required>}} String (ISO 8601 Datetime). The end date for the time period. If a time is provided, it will be ignored.
+: {{<required>}} String ([Datetime](/api/datetime-format#datetime)). The end date for the time period. If a time is provided, it will be ignored.
 
 frequency
 : {{<required>}} String (Enumerable oneOf). Specify whether to use `day` or `month` buckets. If any other value is provided, defaults to `day`.
diff --git a/content/en/methods/grouped_notifications.md b/content/en/methods/grouped_notifications.md
index f0a54e0..b3e2291 100644
--- a/content/en/methods/grouped_notifications.md
+++ b/content/en/methods/grouped_notifications.md
@@ -617,7 +617,7 @@ TODO
 #### `latest_page_notification_at` {{%optional%}}
 
 **Description:** Date at which the most recent notification from this group within the current page has been created. This is only returned when paginating through notification groups.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**
 4.3.0 (`mastodon` [API version]({{< relref "entities/Instance#api-versions" >}}) 2) - added
 
diff --git a/content/en/methods/notifications_alpha.md b/content/en/methods/notifications_alpha.md
index 6c73916..4adbc71 100644
--- a/content/en/methods/notifications_alpha.md
+++ b/content/en/methods/notifications_alpha.md
@@ -440,7 +440,7 @@ TODO
 
 ## `PartialAccountWithAvatar` entity {#PartialAccountWithAvatar}
 
-These are stripped-down versions of [Account]({{< relref "entities/Account" >}}) that only contain what is necessary to display a list of avatars, as well as a few other useful properties. The aim is to cut back on expensive server-side serialization and reduce the network payload size of notification groups. 
+These are stripped-down versions of [Account]({{< relref "entities/Account" >}}) that only contain what is necessary to display a list of avatars, as well as a few other useful properties. The aim is to cut back on expensive server-side serialization and reduce the network payload size of notification groups.
 
 ### Attributes
 
@@ -573,7 +573,7 @@ TODO
 #### `latest_page_notification_at` {{%optional%}}
 
 **Description:** Date at which the most recent notification from this group within the current page has been created. This is only returned when paginating through notification groups.\
-**Type:** String (ISO 8601 Datetime)\
+**Type:** String ([Datetime](/api/datetime-format#datetime))\
 **Version history:**
 4.3.0-beta.1 - added\
 4.3.0-beta.2 - deprecated
diff --git a/content/en/methods/scheduled_statuses.md b/content/en/methods/scheduled_statuses.md
index dad8f97..3c8531f 100644
--- a/content/en/methods/scheduled_statuses.md
+++ b/content/en/methods/scheduled_statuses.md
@@ -182,7 +182,7 @@ Authorization
 ##### Form data parameters
 
 scheduled_at
-: String. ISO 8601 Datetime at which the status will be published. Must be at least 5 minutes into the future.
+: String. [Datetime](/api/datetime-format#datetime) at which the status will be published. Must be at least 5 minutes into the future.
 
 #### Response
 ##### 200: OK
diff --git a/content/en/methods/statuses.md b/content/en/methods/statuses.md
index 85c244f..c2f1767 100644
--- a/content/en/methods/statuses.md
+++ b/content/en/methods/statuses.md
@@ -79,7 +79,7 @@ language
 : String. ISO 639 language code for this status.
 
 scheduled_at
-: String. ISO 8601 Datetime at which to schedule a status. Providing this parameter will cause ScheduledStatus to be returned instead of Status. Must be at least 5 minutes in the future.
+: String. [Datetime](/api/datetime-format#datetime) at which to schedule a status. Providing this parameter will cause ScheduledStatus to be returned instead of Status. Must be at least 5 minutes in the future.
 
 #### Response
 ##### 200: OK
@@ -696,7 +696,7 @@ Translating a status with poll into English
       "id": 34858,
       "options": [
         {
-          "title": "Stay" 
+          "title": "Stay"
         },
         {
           "title": "Go"
@@ -758,7 +758,7 @@ Authorization
 
 ##### Query parameters
 
-max_id 
+max_id
 : **Internal parameter.** Use HTTP `Link` header for pagination.
 
 since_id
@@ -829,7 +829,7 @@ Authorization
 
 ##### Query parameters
 
-max_id 
+max_id
 : **Internal parameter.** Use HTTP `Link` header for pagination.
 
 since_id