According to the search results, there are no Muslim holidays today, October 31, 2023. However, there are several Islamic holidays and festivals in 2023, and their dates can vary depending on which reports of moon sightings are followed. Here are some of the upcoming Muslim holidays in 2023:

• Milad un Nabi: Thursday, September 28, 2023
• Hijra - Islamic New Year: Wednesday, July 19, 2023
• Day of Ashura / Muharram: Friday, July 28, 2023
• Eid-al-Adha: Wednesday, June 28, 2023
• Waqf al Arafa - Hajj: Thursday, June 29, 2023
• Laylat al Qadr: Saturday, April 22, 2023
• Ramadan (start): Tuesday, April 18, 2023
• Lailat al Baraah: Thursday, March 23, 2023
• Lailat al Miraj: Sunday, March 19, 2023

Its important to note that the dates of these holidays can vary depending on the region and the sighting of the moon.