Abstract: Integrating Rukyatulhilal with the Development of Science. Hilal (the crescent moon) which is a parameter to determine the begining of the month is a very thin and dim objects. The testimony of sighting it as the basis for the stipulation of the early month of hijri calendar is still frequently subjected to subjectivity. https://hollandscountryclothinges.shop/product-category/horse-leg-straps/