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TkSetClock - set system date and time

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Operation

On Solaris, it is possible to adjust the system clock slowly by faster or slower the clock few percents from the normal, by setting "Adjust Clock Slowly" option ON. This is useful to adjust the system clock of running system because it will prevents reversal or discontinuous change of the time, but it will take some time until the adjustment is completed.

On Linux (systems /sbin/hwclock command is supported), it is possible to adjust only the hardware clock (RTC) instead of system clock, by setting "Set Hardware Clock (RTC) Only" option ON. Normally, the adjusted time will be loaded from the hardware clock when the system is rebooted next time.

Notice

• You must become the superuser (root) before invoking this program, because privilege is required to adjust the system clock.

• The date will not be validated, and this program will try to set the date even if date such as 30th Febrary had been specified.

• Changing the system clock while running the system can cause some sort of malfunction (including hangup) on the operation of the system. To avoid this problem, it is recommended to use either of "Adjust Clock Slowly" or "Set Hardware Clock (RTC) Only".

See Also