"Sun, 19 Jan 2025 08:14:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
08:14:36
General datetime
2025-01-19 08:14:36Z
For Database
2025-01-19 08:14:36
For HTTP1.1
Sun, 19 Jan 2025 08:14:36 GMT