"Sun, 16 Feb 2025 19:20:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
19:20:39
General datetime
2025-02-16 19:20:39Z
For Database
2025-02-16 19:20:39
For HTTP1.1
Sun, 16 Feb 2025 19:20:39 GMT