I wonder where he gets that from. Due to the equation of time, the difference can be up to about 15 minutes. But maybe he compensates for that already in some w

I wonder where he gets that from. Due to the equation of time, the difference can be up to about 15 minutes. But maybe he compensates for that already in some way? https://en.wikipedia.org/wiki/Equation_of_time https://en.wikipedia.org/wiki/Equation_of_time (This is of course ignoring things like Summer Time.)