Wondering what time it would be in Portugal when it is for instance 12:00 noon in Spain? Use the GMT time zone converter to convert any city / time zone to all other city /time zones and get the corresponding local times.* Cities observing Daylight Saving Time (DST) / Summer Time.se the GMT time zone converter to convert any city / time zone to all other city /time zones and get the corresponding local times. * Cities observing Daylight Saving Time (DST) / Summer Time.