"Tue, 21 May 2024 12:33:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
12:33:35
General datetime
2024-05-21 12:33:35Z
For Database
2024-05-21 12:33:35
For HTTP1.1
Tue, 21 May 2024 12:33:35 GMT