Mountain Time zone. BYU already has a strong relationship with the hand that feeds the SEC (Disney/ESPN). SEC is a much better fit for BYU than the B1G.
The chasm is only going to get wider and wider between B1G/SEC and everyone else. BYU shouldn’t be content and should be exploring all avenues just like every other Big 12 team.
BYU sowed the seeds with the Big 12 in 2016 that enabled Bowlsby to pull the trigger as soon as opportunity arose. Sow similar seeds with the SEC.