"Sun, 19 Jan 2025 20:36:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
20:36:16
General datetime
2025-01-19 20:36:16Z
For Database
2025-01-19 20:36:16
For HTTP1.1
Sun, 19 Jan 2025 20:36:16 GMT