"Sun, 05 Jan 2025 12:15:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250105
Only TIME
12:15:00
General datetime
2025-01-05 12:15:00Z
For Database
2025-01-05 12:15:00
For HTTP1.1
Sun, 05 Jan 2025 12:15:00 GMT