Indeed, from the values of the tropical year (365.2421896698 days) and the synodic month (29.530588853) cited in the respective articles of Wikipedia, it follows that the length of 228=12×19 tropical years is about 83,275.22 days, shorter than the length of 12×235 synodic months, namely about 83,276.26 days, by one day plus about one hour. In fact, an even better correction would be to correcting by two days every 437 years, rather than one day every 228 years. The length of 437=23×19 tropical years, about 159,610.837 days, is shorter than that of 23×235 synodic months, about 159612.833 days, by almost exactly two days, up to only six minutes.
