"Sun, 16 Feb 2025 07:21:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
07:21:04
General datetime
2025-02-16 07:21:04Z
For Database
2025-02-16 07:21:04
For HTTP1.1
Sun, 16 Feb 2025 07:21:04 GMT