"Tue, 21 May 2024 00:35:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
00:35:55
General datetime
2024-05-21 00:35:55Z
For Database
2024-05-21 00:35:55
For HTTP1.1
Tue, 21 May 2024 00:35:55 GMT