"Sun, 23 Feb 2025 19:25:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250223
Only TIME
19:25:38
General datetime
2025-02-23 19:25:38Z
For Database
2025-02-23 19:25:38
For HTTP1.1
Sun, 23 Feb 2025 19:25:38 GMT