"Sat, 25 Jan 2025 18:44:08"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
18:44:08
General datetime
2025-01-25 18:44:08Z
For Database
2025-01-25 18:44:08
For HTTP1.1
Sat, 25 Jan 2025 18:44:08 GMT