Time piece capable of displaying two time zones

A device for displaying the time, notably a timepiece or a timepiece movement, comprising a time display member and a switchover mechanism allowing the time display member to switch over between two time zones,

• wherein the device comprises a time difference display member for displaying the time difference between the two time zones,
• wherein the switchover mechanism comprises:
• a heart piece able to rotate, connected to the display member by a drivetrain,
• a first lever having a first end designed to collaborate with the heart piece in order to cause the display member to indicate the time in the one of the two time zones,
• a second lever designed to make the display member indicate the time in the other time zone,
• a two-position selection member collaborating with the first lever, and
• a control member for selecting one or other of the time zones to be displayed and which collaborates with the two-position selection member, and
• wherein the device comprises a dial provided with an aperture and a mask provided between the time difference display member and the dial of the device, in order, depending on a position of the first lever to either mask or not mask the part of the time difference display member that is situated facing the aperture.