Adhan and iqamah
The difference between the adhan (call to prayer) and the iqamah (the call that starts the congregation), how mosques choose the iqamah and why timetables show both.
The adhan is the call to prayer, made when the time of a prayer begins. The iqamah is the second call, made just before the congregation stands to pray. In between, people arrive, pray optional prayers and make their wudu.
How mosques choose the iqamah
Many mosques fix the iqamah at a number of minutes after the adhan: longer for Fajr, to allow people to wake and come, shorter for Maghrib, which has a short time. Some choose a fixed time for a number of weeks to keep it simple for working people. This tool uses the delays you enter; it does not know your mosque's policy.
On the timetable
A good mosque timetable shows both the start time of each prayer and the iqamah time, with the sunrise and Jumu'ah. The sheet this tool prints has a column for each.
The times are calculated and the iqamah times are only the delays you enter. Each mosque decides its own times, and many add a margin of caution; please check the sheet against your usual practice and a local scholar before putting it on the notice board. This is not a ruling.