"Mon, 20 Jan 2025 20:38:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
20:38:19
General datetime
2025-01-20 20:38:19Z
For Database
2025-01-20 20:38:19
For HTTP1.1
Mon, 20 Jan 2025 20:38:19 GMT