"Sun, 19 Jan 2025 14:54:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
14:54:03
General datetime
2025-01-19 14:54:03Z
For Database
2025-01-19 14:54:03
For HTTP1.1
Sun, 19 Jan 2025 14:54:03 GMT