Note:

+11:00 or UTC+11:00/GMT+11:00 - mean that current place is 11 hours ahead of UTC (Universal Time Coordinated) or GMT (Greenwich Mean Time). For example, current Vladivostok standard time is UTC+11.

-08:00 or UTC-08:00/GMT-08:00 - mean that current place is 8 hours behind of UTC (Universal Time Coordinated) or GMT (Greenwich Mean Time). For example, San Francisco standard time (PST) is UTC-08.