"Sat, 04 Jan 2025 10:40:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
10:40:15
General datetime
2025-01-04 10:40:15Z
For Database
2025-01-04 10:40:15
For HTTP1.1
Sat, 04 Jan 2025 10:40:15 GMT