"Mon, 20 Jan 2025 19:21:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
19:21:39
General datetime
2025-01-20 19:21:39Z
For Database
2025-01-20 19:21:39
For HTTP1.1
Mon, 20 Jan 2025 19:21:39 GMT