"Tue, 14 May 2024 20:00:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240514
Only TIME
20:00:37
General datetime
2024-05-14 20:00:37Z
For Database
2024-05-14 20:00:37
For HTTP1.1
Tue, 14 May 2024 20:00:37 GMT