I'm confused when exactly should maghrib be prayed, is it the start of sunset or when the sun has completely set? For example in England sunset is at 3.49pm and the Adhan is called at 3.54pm in my area.
Maghrib starts at sunset (when the sun completely falls below the horizon at sea level so that it can no longer be seen). I do not know why the sunset and maghrib times are different in England, maybe the sunset time you mentioned is not the sea-level sunset time, or maybe the mosque is simply choosing to call the adhan a bit later.
And God knows best.
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