The Astronomical New Moon is on Saturday 10 July 2021 at 2.18am
The calculations for crescent visibility on 10 July 2021 for London is as follows
Time duration 51 minutes
Crescent age 18 hours 59 minutes
Crescent elongation 9.12 degrees
Crescent altitude 5.33 degrees
The crescent is not visible with naked eye on this day.
1st Zilhajj 1442AH will InshaAllah be on Monday 12 July 2021 in Europe