One of the best site for Lunar visibility.
The Umm al-Qura Calendar of Saudi Arabia
The Principal Islamic Days of Observance according to the Umm al-Qura Calendar
Advancement and Postponement of the Umm al-Qura Calendar
[ if we go by computed , then 10th is on 21st Aug.2018, if by actual visibility ,then 10th is on 22nd Aug.2018 in Saudi Arabia. ] [Please visit fatawa-on line for Saudi Announcement]
Global lunar visibility maps for this year (1439 AH) - science.uu.nl .