"Sat, 27 Jul 2024 15:55:27"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240727
Only TIME
15:55:27
General datetime
2024-07-27 15:55:27Z
For Database
2024-07-27 15:55:27
For HTTP1.1
Sat, 27 Jul 2024 15:55:27 GMT