"Sat, 25 May 2024 23:18:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240525
Only TIME
23:18:55
General datetime
2024-05-25 23:18:55Z
For Database
2024-05-25 23:18:55
For HTTP1.1
Sat, 25 May 2024 23:18:55 GMT