"Sat, 11 May 2024 18:54:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
18:54:13
General datetime
2024-05-11 18:54:13Z
For Database
2024-05-11 18:54:13
For HTTP1.1
Sat, 11 May 2024 18:54:13 GMT