The Astronomical New Moon is on Tuesday 7 September 2021 at 1:53am
The calculations for crescent visibility on on 7 September 2021 for London is as follows:


Sunset 7:33am
Moonset 8:13pm
Crescent age 17 hours 42 minutes
Time duration 40 minutes
Crescent elongation 10 degrees
Crescent altitude 5.34 degrees


The crescent is not visible with naked eye on this day
1st Safar 1443AH will InshaAllah be on Thursday 9 September 2021 in Europe