Please visit these pages for more information:
https://en.wikipedia.org/wiki/Daylight_saving_time
https://en.wikipedia.org/wiki/Daylight_saving_time_by_country
https://en.wikipedia.org/wiki/Summer_Time_in_Europe
https://en.wikipedia.org/wiki/Daylight_saving_time_in_the_Americas
https://en.wikipedia.org/wiki/Daylight_saving_time_in_Oceania
https://en.wikipedia.org/wiki/Daylight_saving_time_in_the_United_States
Time Correction
Your Nixie 6 can be programmed to compensate for timing inaccuracies. Time
deviation calculations are carried out according to the following formula:
Correction (# of seconds/24 hours) = (50 - (fixed number)) x 5.2 sec
You can toggle the “fixed number” in the Time Correction field from anywhere
between 01-99.
This means that you can set the time correction on your Nixie 6 to anywhere
between +254.8 seconds/24 hours and -254.8 seconds/24 hours.
To Correct the Time:
First, make sure the Time Correction value on your Nixie 6 is set to 50.
Work your way back to Page 1 of the Settings Menu. Set the time on your Nixie 6
to a reliable source (such as www.time.gov).
Wait 24 hours and check the difference between your Nixie 6 and whichever
reliable source you have chosen as your comparison time. Once you know how
many seconds your Nixie 6 has deviated, use the time correction formula to
determine which “fixed number” you should select.
Remember that all the fixed numbers below 50 will give you positive numbers
(which you can use if your Nixie 6 is counting time too quickly).
And remember that all the fixed numbers above 50 will give you negative
numbers (which you can use if your Nixie 6 is counting time too slowly).