Check the list below for your time zone. Then change your time to the GMT for your zone.
For Example, Central Time Zone (CST) is GMT-6.
World GMT Table
Zone City or Area Zone Crosses Daylight Savings Time
GMT-12 Eniwetok
GMT-11 Samoa
GMT-10 Hawaii
GMT-9 Alaska
GMT-8 PST, Pacific US GMT-7 PDT
GMT-7 MST, Mountain US GMT-6 MDT
GMT-6 CST, Central US GMT-5 CDT
GMT-5 EST, Eastern US GMT-4 EDT
GMT-4 Atlantic, Canada
GMT-3 Brazilia, Buenos Aries
GMT-2 Mid-Atlantic
GMT-1 Cape Verdes
GMT Greenwich Mean Time, Greenwich
GMT+1 Berlin, Rome
GMT+2 Israel, Cairo
GMT+3 Moscow, Kuwait
GMT+4 Abu Dhabi, Muscat
GMT+5 Islamabad, Karachi
GMT+6 Almaty, Dhaka
GMT+7 Bangkok, Jakarta
GMT+8 Hong Kong, Beijing
GMT+9 Tokyo, Osaka
GMT+10 Sydney, Melbourne, Guam
GMT+11 Magadan, Soloman Is.
GMT+12 Fiji, Wellington, Auckland