"Sun, 26 Jan 2025 09:21:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250126
Only TIME
09:21:00
General datetime
2025-01-26 09:21:00Z
For Database
2025-01-26 09:21:00
For HTTP1.1
Sun, 26 Jan 2025 09:21:00 GMT