Hi, I take care of Blue Iris systems at 2 of my daughters homes. Both systems are in the Eastern time zone but show Sunrise at 8:50am and Sunset at 6:09pm in the log file. Every day the times are the same, no gain or decrease in time. Both systems have correct time zones set in both the router and BI servers.
My system, also in the Eastern time zone is correct. The only difference between the systems is the router, I have a Ubiquiti USG3 and my daughter's have Verizon on one and Asus on the other.
Daughter 1

Daughter 2

My log

All systems are 5.8.2.2.
My system, also in the Eastern time zone is correct. The only difference between the systems is the router, I have a Ubiquiti USG3 and my daughter's have Verizon on one and Asus on the other.
Daughter 1

Daughter 2

My log

All systems are 5.8.2.2.