The Fiqh Council of North America is a trusted source that sets the Ramadan dates for North American countries based on astronomical moon calculations.
The first day of Ramadan 1439 is on Wednesday, May 16, 2018, insha’Allah. First Tarawih prayer will be on Tuesday night.
Eid ul-Fitr 1439 AH will be on Friday, June 15, 2018, insha’Allah.
For more information, visit: http://www.isna.net/ramadan-1439-2018/