In anticipation of Ramadan 1447, various astronomical authorities in Turkey, Oman, Qatar, and Singapore have made calculations regarding the crescent moon sighting. According to the International Astronomical Center, Turkey, Oman, and Singapore have agreed that the conclusion of Shaban will be on Wednesday, February 18, 2026, with Ramadan commencing on Thursday, February 19. It was noted that astronomical assessments indicated that the crescent moon would not be visible on Tuesday, February 17, which usually marks moon sighting; thus, it was improbable to start Ramadan on that date.

In Oman, the official announcement confirmed the conclusion of Shaban on February 18, stating that Thursday, February 19, will be the first day of Ramadan. The importance of moon sighting is emphasized in Oman, where it is a critical criterion for determining the start of the lunar month. Since the crescent is expected not to be visible on Tuesday due to it setting before the sun in most of the Arab and Islamic world, Oman’s reliance on visual confirmation reinforces their adherence to traditional lunar observance practices.

As the holy month approaches, discussions about the start date not only highlight the differences in astronomical calculations but also reflect the cultural significance and variations within Islamic practice regarding moon sighting. These differences can lead to varying observances of Ramadan across different countries, aligning some with global astronomical findings while others adhere strictly to traditional sighting methods, impacting their communities' spiritual preparations for this important month.