"Sat, 25 Jan 2025 11:18:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
11:18:36
General datetime
2025-01-25 11:18:36Z
For Database
2025-01-25 11:18:36
For HTTP1.1
Sat, 25 Jan 2025 11:18:36 GMT