1. Until indicates the time of change of an activity or situation.
Pattern 1: verb + until + time
They waited until six o'clock.
The boys studied until midnight.
Pattern 2: verb + until + beginning of event
They lived here until their wedding; then they left.
She was busy until her graduation.
They didn't watch the game until halftime.
United Arab Emirates
three equal horizontal bands of green (top), white, and black with a wider vertical red band on the hoist side; the flag incorporates all four Pan-Arab colors, which in this case represent fertility (green), neutrality (white), petroleum resources (black), and unity (red); red was the traditional color incorporated into all flags of the emirates before their unification