"Sun, 14 Apr 2024 18:43:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240414
Only TIME
18:43:11
General datetime
2024-04-14 18:43:11Z
For Database
2024-04-14 18:43:11
For HTTP1.1
Sun, 14 Apr 2024 18:43:11 GMT