"Sat, 15 Jun 2024 07:42:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
07:42:34
General datetime
2024-06-15 07:42:34Z
For Database
2024-06-15 07:42:34
For HTTP1.1
Sat, 15 Jun 2024 07:42:34 GMT