"Sun, 19 Jan 2025 08:21:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
08:21:54
General datetime
2025-01-19 08:21:54Z
For Database
2025-01-19 08:21:54
For HTTP1.1
Sun, 19 Jan 2025 08:21:54 GMT