I need to convert UTC/Local time to GMT+(?) format on requested timezone... eg..
UTC to GMT 0
UTC to GMT+1
UTC to GMT-1
UTC to GMT+5
UTC to GMT-5
GMT+5 to GMT+4
GMT+5 to GMT-3
UTC is GMT for most practicable purposes. We (the English) invented it. Just add/subtract the hours.
Please visit Greenwich. Just outside london.