"Sun, 12 Jan 2025 21:55:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250112
Only TIME
21:55:50
General datetime
2025-01-12 21:55:50Z
For Database
2025-01-12 21:55:50
For HTTP1.1
Sun, 12 Jan 2025 21:55:50 GMT