Impact on Punch Length When It Occurs Across a Switch To Or From Daylight Saving Time

Clicking on an existing punch reveals details about that punch. One of these details is length of the punch.  For example, a punch that started at midnight and ended at 6 a.m. would normally show a length of 6 hours.

But, what happens to the length of a punch when it crosses through a change in time as a result of daylight saving time?

Did you know that it's possible for a punch that starts at midnight and that ends at 6 a.m. to show a length of 5, 6, or 7 hours?

XPunch takes into consideration the change in hour when calculating punch length.

• Times are stocked in Coordinated Universal Time (UTC) on XPunch servers. This means that punch times will appear based on the time zone that is specified for your group.
• There are certain times during a transition to or from daylight saving time that are known as "ambiguous times" because manual time entry during this period of time could be interpreted as occurring in either time. In such a case, we make a decision on how the length will be addressed.

Finally, there are some times that simply cannot exist, such as when clocks "jump forward." Attempting to perform a punch during an invalid time (a time that does not exist) will generate an error.

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TIP: Time and Date AS offers detailed information about time zones and daylight saving time for every place on the planet.