"Sun, 23 Feb 2025 11:18:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250223
Only TIME
11:18:36
General datetime
2025-02-23 11:18:36Z
For Database
2025-02-23 11:18:36
For HTTP1.1
Sun, 23 Feb 2025 11:18:36 GMT