SMC Command 0x04

Query Real Time Clock

The reply to the SMC command 0x04 will contain the count of milliseconds since 11-15-2001 00:00:00 UTC, represented in hex, with the least significant byte being first. This code is identical to the original Xbox Real Time Clock (RTC) code.

This value wraps around once it reaches FFFFFFFFFF, representing 09/17/2036 19:53:47 UTC.

Message:	04
Reply:	04 XX XX XX XX XX XX YY ZZ

	Meaning
XX	Number of miliseconds since epoch.
YY	Boolean; whether time is in sync.
ZZ	Unknown; seemingly always 00.