"Sat, 13 Jul 2024 15:39:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240713
Only TIME
15:39:19
General datetime
2024-07-13 15:39:19Z
For Database
2024-07-13 15:39:19
For HTTP1.1
Sat, 13 Jul 2024 15:39:19 GMT