"Sat, 31 May 2025 14:45:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250531
Only TIME
14:45:13
General datetime
2025-05-31 14:45:13Z
For Database
2025-05-31 14:45:13
For HTTP1.1
Sat, 31 May 2025 14:45:13 GMT