Istikmal, PBNU Sets 1 Muharram 1448 H to Fall on Wednesday, June 17

The Central Board of Nahdlatul Ulama (PBNU), through its Falakiyah Institute, has determined that the start of Muharram 1448 H falls on Wednesday Kliwon, June 17, 2026 (starting Wednesday night). This decision differs from the government's announcement of 1 Muharram on Tuesday, June 16, 2026. The PBNU's decision is stated in an official letter numbered 146/PB.08/A.II.11.13/13/06/2026, signed by LF PBNU Chairman Drs KH Sirril Wafa, MA and Secretary Asmui Mansur, M.Kom on Monday, 29 Dzulhijjah 1447 H (June 15, 2026). This decision was reached after the hilal sighting teams across Indonesia were unable to see the crescent moon on Monday evening, so the month of Dzulhijjah was completed to 30 days (istikmal). Based on astronomical data, conjunction occurred on June 15, 2026 at 09:55 WIB, and the hilal in Jakarta was at an altitude of 2 degrees 01 minutes 24 seconds. Even though in Aceh the criteria for imkanur rukyah were theoretically met, the absence of any eyewitness reports of sighting the crescent directly led PBNU to stick with the istikmal method. PBNU has instructed the dissemination of this announcement to Nahdliyin members and invites Muslims to welcome the new year with the prayer: ‘Allāhumma innā nas’aluka khaira hāżā asy-syahri, wa na‘ūżu bika min syarri al-qadari, wa min syarri al-mahsyari’ (O Allah, we ask You for the goodness of this month, and we seek refuge in You from the evil of destiny and the evil of the gathering). https://kabarbaik.co/istikmal-pbnu-tahun-baru-islam-1-muharam-1448-h-jatuh-pada-rabu-17-juni/