"Sun, 14 Jul 2024 18:34:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240714
Only TIME
18:34:21
General datetime
2024-07-14 18:34:21Z
For Database
2024-07-14 18:34:21
For HTTP1.1
Sun, 14 Jul 2024 18:34:21 GMT