"Sat, 25 Jan 2025 04:18:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
04:18:45
General datetime
2025-01-25 04:18:45Z
For Database
2025-01-25 04:18:45
For HTTP1.1
Sat, 25 Jan 2025 04:18:45 GMT