Peace be upon you and the mercy of Allah. May I ask a question. When we choose the method of calculating North America, where the degrees of morning and night prayer are 15, everything is the same. But already on May 3, the morning prayer does not coincide, 15 degrees falls at 01:24, and yours shows 01:35. And then the breaks get bigger. For example, on May 18, morning prayer at 15 degrees shows the time already 00:01, and yours is 01:23. How did it happen that in May your 15 degrees of morning prayer does not converge with the terrain? I live in Dzhalil, Tatarstan, coordinates 55° 01'30″ north latitude and 52° 44'10″ east longitude.