The Astronomical New Moon is on Wednesday 06 March 2019 at 4:04pm. The crescent cannot be seen on this day.
Calculations for crescent visibility on Thursday 07 March 2019 for London are as follows:
Crescent age 25 hours 48 minutes
Crescent altitude 7:02 degrees
Crescent elongation 12:40 degrees
The crescent will be visible with optical aid and could be seen by naked eye.
Whilst the crescent can easily be seen using optical aid, the Shar’i criterion for marking the beginning of the month is the crescent to be seen with the naked eye. This will not be as easy and if anybody witnesses the crescent, please call 07785298759 where we will be collating any credible reports of sighting.
Thus 1st Rajab will be on Friday 08 March 2019 or Saturday 09 March 2019.