A method is provided for determining a master time signal, in particular in a vehicle. The method includes the acts of: a) receiving at least one first server time signal from a first time server; b) receiving at least one second server time signal from a second time server; c) comparing the first server time signal with the second server time signal in order to determine at least one first time difference; d) storing the first time difference; e) determining an availability of the first server time signal and/or of the second server time signal; f) using the stored first time difference to determine the master time signal at least if at least one of the server time signals is not available.

A method is provided for determining a master time signal, in particular in a vehicle. The method includes the acts of: a) receiving at least one first server time signal from a first time server; b) receiving at least one second server time signal from a second time server; c) comparing the first server time signal with the second server time signal in order to determine at least one first time difference; d) storing the first time difference; e) determining an availability of the first server time signal and/or of the second server time signal; f) using the stored first time difference to determine the master time signal at least if at least one of the server time signals is not available.

Embodiments of a watch can include a watch having an analog watch face, a first watch band portion, and a second watch band portion, where the watch can include a digital clasp having a digital display and a circuit board associated with a controller.

Embodiments of a watch can include a watch having an analog watch face, a first watch band portion, and a second watch band portion, where the watch can include a digital clasp having a digital display and a circuit board associated with a controller.

Systems and methods are provided for monitoring or protecting an electric power distribution system using protective devices that may rely on accurate time signals from a common time source. A first protective device may receive a first time signal deriving from the common time source and a second protective device may receive a second time signal deriving from the common time source. The first time signal and the second time signal may be compared; when a difference between them exceeds a defined threshold, time signal manipulation may be detected. The protective devices may modify their operation in response to or to account for the time signal manipulation.

Embodiments of a watch can include a watch having an analog watch face, a first watch band portion, a second watch band portion and an analog watch face. The watch can include a digital clasp having a digital display and a circuit board associated with a controller.

Embodiments of a watch can include a watch having an analog watch face, a first watch band portion, a second watch band portion and an analog watch face. The watch can include a digital clasp having a digital display and a circuit board associated with a controller.

Methods, systems, apparatuses, and computer program products are provided for enabling devices to determine the time zone in which they are located. A mobile device may receive location information from one or more sources. Based thereon, the current location of the mobile device may be determined in terms of latitude and longitude. The indication of the current location may be converted to an index value according to a Hilbert curve (or other space-filling curve), and the index value applied to a time zone index file to determine the local time zone. A time zone setting of the mobile device may be updated accordingly. Furthermore, geofencing may be used by the mobile device to detect movement towards and through a time zone boundary, leading to a new time zone determination being initiated.

Methods, systems, apparatuses, and computer program products are provided for enabling devices to determine the time zone in which they are located. A mobile device may receive location information from one or more sources. Based thereon, the current location of the mobile device may be determined in terms of latitude and longitude. The indication of the current location may be converted to an index value according to a Hilbert curve (or other space-filling curve), and the index value applied to a time zone index file to determine the local time zone. A time zone setting of the mobile device may be updated accordingly. Furthermore, geofencing may be used by the mobile device to detect movement towards and through a time zone boundary, leading to a new time zone determination being initiated.

Synchronization of precision timing signals maintained by multiple communication networks is described. A precision timing signal may be generated based on the change in state of a plurality of processors. Synchronization of the precision timing signals may be facilitated by a computing device monitoring at least two communication networks. The computing device may generate time offsets that are derived from the precision timing signals associated with each communication network. The time offsets may be communicated by the computing devices to remote devices communicatively coupled to the computing device via a first communication network.