"Mon, 17 Jun 2024 13:40:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240617
Only TIME
13:40:21
General datetime
2024-06-17 13:40:21Z
For Database
2024-06-17 13:40:21
For HTTP1.1
Mon, 17 Jun 2024 13:40:21 GMT