srishti786 https://api.aladhan.com/v1/gToH/12-06-2029?date=12-06-2029 converting gregorian date to hijri is correct "hijri": { "date": "30-01-1451", But, https://api.aladhan.com/v1/hToG/30-01-1451?date=30-01-1451 converting hijri to gregorian date is incorrect "gregorian": { "date": "13-06-2029",
meezaan Hijri to Gregorian is always an intermediary mathematical calculation based on the Julian Date. You might want to use a different method to try with the adjustment parameter, but for now 1451 AH is too far out to investigate this.