"Sat, 11 May 2024 11:20:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
11:20:40
General datetime
2024-05-11 11:20:40Z
For Database
2024-05-11 11:20:40
For HTTP1.1
Sat, 11 May 2024 11:20:40 GMT