"Mon, 27 Jan 2025 15:27:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250127
Only TIME
15:27:38
General datetime
2025-01-27 15:27:38Z
For Database
2025-01-27 15:27:38
For HTTP1.1
Mon, 27 Jan 2025 15:27:38 GMT