"Sun, 16 Feb 2025 21:10:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
21:10:33
General datetime
2025-02-16 21:10:33Z
For Database
2025-02-16 21:10:33
For HTTP1.1
Sun, 16 Feb 2025 21:10:33 GMT