"Sat, 29 Jun 2024 10:14:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
10:14:21
General datetime
2024-06-29 10:14:21Z
For Database
2024-06-29 10:14:21
For HTTP1.1
Sat, 29 Jun 2024 10:14:21 GMT