Nepal is +5 hours 45 minutes ahead to Greenwich Mean Time (GMT: +0545). For example when it is noon in Kathmandu, standard time of London is 6.15am, 4.15am in Sydney, 1.15am in New York and 10.15 pm the previous night in San Francisco. The strange 15-minute difference is said to be a reflection of the exact time at the summit of Mt. Gaurishankar.