Generally discussed herein are systems, apparatuses, and methods for providing an accurate and stable time base. A device can include a voter to receive a plurality of time source values, determine a central time value, and determine which of the plurality of time source values are valid, a deviance checker to determine a deviance set, a discrete time selector to provide a selector identification identifying which of the time source values is selected, and a network interface to provide a time value based on the selected time source value.

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.

The conventional demand target display device based on time information differing from the information used by electric power companies and electric power consumers causes a divergence regarding their demand values. Therefore, a demand target display device with a dual-purpose scale, which acquires AC signals based on the AC waveform of AC power from a power supply line, generates time information based on the acquired AC signals, transmits the generated time information via radio waves within a housing, receives the transmitted time information via radio waves within the housing, indicates the time on the dual-purpose scale based on the received information, acquires electrical energy consumption within a segment for a given target demand value including the current time, and indicates the relationship between the acquired electrical energy consumption within a segment recorded and a target demand value set for such segment, is proposed.

The conventional demand target display device based on time information differing from the information used by electric power companies and electric power consumers causes a divergence regarding their demand values. Therefore, a demand target display device with a dual-purpose scale, which acquires AC signals based on the AC waveform of AC power from a power supply line, generates time information based on the acquired AC signals, transmits the generated time information via radio waves within a housing, receives the transmitted time information via radio waves within the housing, indicates the time on the dual-purpose scale based on the received information, acquires electrical energy consumption within a segment for a given target demand value including the current time, and indicates the relationship between the acquired electrical energy consumption within a segment recorded and a target demand value set for such segment, is proposed.

A wearable electronic device having an analog display and a digital display. The device may include a receiver for receiving, from a remote source, current time information data representative of a current time; a controller, operatively coupled to the receiver, wherein the controller processes the current time information data received from the remote source and provides for the current time information data to be displayed by the at least one digital indicator on the digital display as the current time; and a an analog time indicator rotating arrangement for causing the rotation of the at least one analog time indicator until the at least one analog time indicator is aligned with the at least one digital indicator; whereby the alignment of the at least one analog time indicator with the at least one digital indicator indicates that the at least one analog time indicator is synchronized with the correct time information.

In some embodiments, an advisory time keeping device may include a housing having a controller, a control input, a display output, and a tilt sensor. The controller may include a timer module and a memory. The control input may be operable to enter time data and advisory data into the memory. A display output may be coupled to the housing which may be operable for displaying data from the timer circuit and memory. The tilt sensor may be in communication with the controller, and the tilt sensor may be operable to detect changes in the orientation of the housing. The controller may be operable to cause the display output to display advisory data in response to changes in the orientation of the housing which may be detected by the tilt sensor.

A wearable electronic device having an analog display and a digital display. The device may include a receiver for receiving, from a remote source, current time information data representative of a current time; a controller, operatively coupled to the receiver, wherein the controller processes the current time information data received from the remote source and provides for the current time information data to be displayed by the at least one digital indicator on the digital display as the current time; and a an analog time indicator rotating arrangement for causing the rotation of the at least one analog time indicator until the at least one analog time indicator is aligned with the at least one digital indicator; whereby the alignment of the at least one analog time indicator with the at least one digital indicator indicates that the at least one analog time indicator is synchronized with the correct time information.

Systems and methods for displaying an adjusted time to a user are provided. A time display device that normally displays the correct time is used to display a modified time. This modified time is unknown to the user so that the user cannot know what the time offset is and is forced to assume that the current time is displayed. The modified time may be an advanced time or a time that is set backwards, depending on when the user wants to arrive at an event.

An electronic device has a first hand that displays a first time; a second hand that displays a second time; an indicator hand; a detection device that outputs a first time selection signal when it detects a first time selection operation of an input device, and outputs a second time selection signal when it detects a second time selection operation of the input device; a mode setter that sets a first time correction mode to correct the first time when the first time selection signal is received, and sets a second time correction mode to correct the second time when the second time selection signal is received; and a display controller that points the indicator hand to a position other than that of the second hand when the first time correction mode is set, and points the indicator hand to the second hand when the second time correction mode is set.