Birka Prayer times
Documentation
About the program
Instruction
Times displayed
Location
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Settings
Fiqh & computations
1. Fiqh definitions
2. Shuruq and Maghrib
3. Fajr and Isha
4. Continuous twilight
5. Criticism of some tables
Notes
Physical aspects
Observations
Measures of darkness
Refraktion
model
Referenses
Links
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Fatawa
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