"Sat, 15 Jun 2024 00:27:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
00:27:48
General datetime
2024-06-15 00:27:48Z
For Database
2024-06-15 00:27:48
For HTTP1.1
Sat, 15 Jun 2024 00:27:48 GMT