"Mon, 20 Jan 2025 09:35:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
09:35:38
General datetime
2025-01-20 09:35:38Z
For Database
2025-01-20 09:35:38
For HTTP1.1
Mon, 20 Jan 2025 09:35:38 GMT