"Mon, 20 Jan 2025 12:15:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
12:15:07
General datetime
2025-01-20 12:15:07Z
For Database
2025-01-20 12:15:07
For HTTP1.1
Mon, 20 Jan 2025 12:15:07 GMT