That's a good thing to consider! I forgot to ask:
In Settings > Location and Modes, make sure your hub location is set correctly. The actual latitude and longitude or, equivalently, on-map location, are what determines this (the postal code may get you somewhere close but isn't ultimately used) and, together with your "Time Zone" setting (which you should also check) is what Hubitat uses to calculate sunrise and sunset times.
Hubitat seems to do pretty good at guessing locations if you use a US-based ZIP code. Guessing by your device name and profile time zone, I'm guessing you might be in Canada, and I've heard from non-US users that it seems to do a bad job detecting your location in that case. Manually configuring this might be the trick to making it work correctly. Ensure the "Sunrise" and "Sunset" times are accurate on that page before you leave.