"Sun, 12 Jan 2025 20:38:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250112
Only TIME
20:38:18
General datetime
2025-01-12 20:38:18Z
For Database
2025-01-12 20:38:18
For HTTP1.1
Sun, 12 Jan 2025 20:38:18 GMT