The following American and Omani holidays will be observed during the calendar year 2015:
- January 1: New Year's Day
- January 3: The Prophet's Birthday*
- January 18: Birthday of Martin Luther King, Jr.
- February 15: President's Day
- May 15: The Prophet's Ascension Day*
- May 24: Memorial Day
- July 5: Independence Day
- July 18-19: Eid Al Fitr*
- July 23: Renaissance Day**
- September 6: Labor Day
- September 25-27: Eid Al Adha*
- October 11: Columbus Day
- October 15: Islamic New Year*
- November 11: Veteran's Day
- November 18: Oman National Day**
- November 26: Thanksgiving Day
- December 24: Christmas Day
*Denotes Omani religious holidays. Dates for religious holidays are dependent upon the sighting of the moon and may vary from the above estimated dates. Mission holidays will be determined and announced based upon the decision made by the Omani Government.
**Denotes Omani holiday. Mission holidays will be determined and announced based upon the decision made by the Omani Government.