"Mon, 24 Jun 2024 10:21:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240624
Only TIME
10:21:21
General datetime
2024-06-24 10:21:21Z
For Database
2024-06-24 10:21:21
For HTTP1.1
Mon, 24 Jun 2024 10:21:21 GMT