"Sun, 14 Apr 2024 22:18:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240414
Only TIME
22:18:18
General datetime
2024-04-14 22:18:18Z
For Database
2024-04-14 22:18:18
For HTTP1.1
Sun, 14 Apr 2024 22:18:18 GMT