Dates-and-Times.md

 #### Table of Contents
 [Date](#date)<br>
-[Time](#time)
+[Time](#time)<br>
+[Datetime](#datetime)
 
 ## Date
 
 Dates must be expressed as `YYYY-MM-DD` (10 characters long) according to [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601).
 
-Good examples:
+Examples:
 
-* `2018-04-24` 👍 
-* `2012-12-12` 👍
+* `2018-04-24` 👍 instead of `4/24/2018` 👎
+* `2012-12-12` 👍 instead of `12.12.2018` 👎
+* `2018-4-24` 👍 instead of `2018-4-24` 👎
 
-Bad examples:
+## Time
 
-* `4/24/2018` 👎
-* `12.12.2018` 👎
-* `2018-4-24` 👎 (must be zero padded)
+Times *must* be expressed as `HH:MM` (5 characters long) according to [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601). Midnight *must* be expressed as `00:00`.
 
-## Time
+Examples:
 
-Dates *must* be expressed as `YYYY-MM-DDTHH:MM:SSZ` (20 characters long) according to [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601). The time zone *must* be [UTC/Zulu](https://en.wikipedia.org/wiki/Coordinated_Universal_Time).
+* `17:22` 👍 
+* `05:33` 👍 instead of `5:33` 👎
+* `00:00` 👍 instead of `24:00` 👎
 
-Good examples:
+## Datetime
 
-* `2018-04-24T00:00:00Z` 👍 
-* `2012-12-12T13:14:15Z` 👍
+Datetimes *must* be expressed as `YYYY-MM-DDTHH:MM:SSZ` (20 characters long) according to [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601). The time zone *must* be [UTC/Zulu](https://en.wikipedia.org/wiki/Coordinated_Universal_Time) and midnight *must* be expressed as `YYYY-MM-DDT00:00:00Z`.
 
-Bad examples:
+Examples:
 
-* `2018-04-24T00:00:00+00:00` 👎 (use trailing `Z` instead of `+00:00`)
-* `2012-12-12T00:00:00+02:00` 👎 (convert to UTC/Zulu))
-* `2018-03-16T09:17:53` 👎 (add trailing `Z` for time zone UTC/Zulu)
+* `2018-04-23T00:00:00Z` 👍 instead of `2018-04-23T24:00:00Z` 👎
+* `2012-12-12T13:14:15Z` 👍 instead of `2012-12-12T13:14:15+00:00` 👎
+* `2012-12-11T22:00:00Z` 👍 instead of `2012-12-12T00:00:00+02:00` 👎
+* `2018-03-16T09:17:53Z` 👍 instead of `2018-03-16T09:17:53Z` 👎