"Tue, 18 Jun 2024 18:38:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
18:38:31
General datetime
2024-06-18 18:38:31Z
For Database
2024-06-18 18:38:31
For HTTP1.1
Tue, 18 Jun 2024 18:38:31 GMT