"Sun, 12 Jan 2025 18:37:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250112
Only TIME
18:37:45
General datetime
2025-01-12 18:37:45Z
For Database
2025-01-12 18:37:45
For HTTP1.1
Sun, 12 Jan 2025 18:37:45 GMT