"Sat, 11 May 2024 12:33:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
12:33:33
General datetime
2024-05-11 12:33:33Z
For Database
2024-05-11 12:33:33
For HTTP1.1
Sat, 11 May 2024 12:33:33 GMT