"Tue, 18 Jun 2024 21:19:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
21:19:51
General datetime
2024-06-18 21:19:51Z
For Database
2024-06-18 21:19:51
For HTTP1.1
Tue, 18 Jun 2024 21:19:51 GMT