The Récital 30 incorporates the innovative roller system from the Récital 28, allowing world travelers to accurately display 25 global time zones during the four time periods of the year – Coordinated Universal Time, American Summer Time, European and American Summer Time, and European Winter Time.

Ever since Daylight Saving Time (DST) was introduced, world time watches have been unable to adapt to the vagaries of when DST starts and ends in different countries, and which countries do not change (only about 70 countries use some form of DST). In reality, all world time watches were wrong during the Daylight Saving Time periods, either set for DST so the rest of the world was wrong by one hour, or set for the majority of the world and the DST countries were off by an hour.