"Sat, 18 Jan 2025 00:04:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
00:04:21
General datetime
2025-01-18 00:04:21Z
For Database
2025-01-18 00:04:21
For HTTP1.1
Sat, 18 Jan 2025 00:04:21 GMT