Hi,
I've noticed that sunset, sunrise and civil twilight times are a bit off on my Garmin D2 Air X10 when compared to what it should be and what Finntraffic (Finnish CAA) publishes for EFOU.
I am in Oulu, Finland and my set airport is EFOU. I am in my apartment which is 6.2 NM straight line distance away from the airport. Given the short distance between the airport and my location, CT being 5 minutes off cannot be explained by location difference. And when I asked Garmin support where they get their data, I was told to reset my watch instead of information (which of course didn't help).
Below are the CT times in the following format: TWIL FM SR SS TWIL T
D2 Air X10: 05:17 06:09 14:53 15:46
Finnish CAA (official times): 05:12 06:04 15:02 15:54
My local times corrected for distance from the airport (if that would be really the case): 05:13 06:05 14:58 15:51
Have anyone noticed a similar issue? Garmin Support advised me to get the GPS signal again, reset it, connect it to computer etc. but these did not help.
Thank you!