"Tue, 18 Jun 2024 14:48:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
14:48:02
General datetime
2024-06-18 14:48:02Z
For Database
2024-06-18 14:48:02
For HTTP1.1
Tue, 18 Jun 2024 14:48:02 GMT