"Sat, 15 Jun 2024 00:06:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
00:06:42
General datetime
2024-06-15 00:06:42Z
For Database
2024-06-15 00:06:42
For HTTP1.1
Sat, 15 Jun 2024 00:06:42 GMT