"Tue, 21 May 2024 12:35:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
12:35:06
General datetime
2024-05-21 12:35:06Z
For Database
2024-05-21 12:35:06
For HTTP1.1
Tue, 21 May 2024 12:35:06 GMT