"Mon, 27 Jan 2025 14:42:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250127
Only TIME
14:42:40
General datetime
2025-01-27 14:42:40Z
For Database
2025-01-27 14:42:40
For HTTP1.1
Mon, 27 Jan 2025 14:42:40 GMT