"Sat, 20 Jan 2024 06:23:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240120
Only TIME
06:23:11
General datetime
2024-01-20 06:23:11Z
For Database
2024-01-20 06:23:11
For HTTP1.1
Sat, 20 Jan 2024 06:23:11 GMT