"Sun, 05 Jan 2025 21:54:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250105
Only TIME
21:54:35
General datetime
2025-01-05 21:54:35Z
For Database
2025-01-05 21:54:35
For HTTP1.1
Sun, 05 Jan 2025 21:54:35 GMT