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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR
OL-26895-01
Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR
clock update-calendar
clock update-calendar
To perform a one-time update of the hardware clock (calendar) from the software clock, use the clock
update-calendar command in user EXEC or privileged EXEC mode.
clock update-calendar
Syntax Description This command has no arguments or keywords.
Command Modes User EXEC
Privileged EXEC
Command History
Usage Guidelines Some platforms have a hardware clock (calendar) in addition to a software clock. The hardware clock is
battery operated, and runs continuously, even if the router is powered off or rebooted.
If the software clock and hardware clock are not synchronized, and the software clock is more accurate,
use this command to update the hardware clock to the correct date and time.
Examples The following example copies the current date and time from the software clock to the hardware clock:
Router> clock update-calendar
Related Commands
Release Modification
10.0 This command was introduced.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX This command is supported in the Cisco IOS Release 12.2SX train. Support
in a specific 12.2SX release of this train depends on your feature set,
platform, and platform hardware.
12.2(33)MRA This command was integrated into Cisco IOS Release 12.2(33)MRA.
15.0(1)MR This command was integrated into Cisco IOS Release 15.0(1)MR.
15.1(3)MR This command was integrated into Cisco IOS Release 15.1(3)MR.
Command Description
clock read-calendar Performs a one-time update of the software clock from the hardware
clock (calendar).
ntp update-calendar Periodically updates the hardware clock from the software clock.
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