"Sun, 25 Feb 2024 20:15:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240225
Only TIME
20:15:00
General datetime
2024-02-25 20:15:00Z
For Database
2024-02-25 20:15:00
For HTTP1.1
Sun, 25 Feb 2024 20:15:00 GMT