"Sun, 16 Feb 2025 18:28:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
18:28:42
General datetime
2025-02-16 18:28:42Z
For Database
2025-02-16 18:28:42
For HTTP1.1
Sun, 16 Feb 2025 18:28:42 GMT