Suppose one works the nightshift from Tuesday 10 PM to Wednesday 6 AM.

Would this be considered Tuesdays work or Wednesdays work?

Is the nightshift attributed to the day it starts, or to the day it ends?

Same question for registering overtime. If my shift ends at 6 AM, but I do two hours of overtime, is that the first day's overtime, because the shift started on that day, or the next days overtime, because that is when it actually too place?

Is this codified by law? Are there regulations? Or can every company make their own rules about this?

  • What's the issue? Possible overtime? The starting time of the next shift? Jun 4 at 22:48
  • 2
    Ask your employer? Jun 4 at 23:49
  • 3
    @coll The downvotes are there because we need to understand the context. Is this for tax reasons? Is this for contractual reasons? Jun 5 at 6:27
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    @user1785730 Choose whatever day you want, just be consistent. Jun 6 at 1:00
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    @user1785730 You mention that you "want to attribute a nightshift to a day and am not sure wether to choose the starting or the ending day." We are asking about context because we want to know why. Since you mention that there is no further context, are you just asking out of curiosity?
    – zmike
    Jun 6 at 16:47

1 Answer 1


Everywhere I'm aware of they count nightshift as the day on which it starts. But I haven't heard of that being a law of any sort (I'm not a lawyer).

The regulated bit is just the hours worked, not which day unless it crosses into a weekend or other time frame which is paid differently in some locales. If in doubt ask HR.

When I did factory work Friday nightshift started 10PM Friday and ended 6AM Saturday. But due to the locale I got paid normal nightshift rate from 10PM to midnight and time and a half for the 6 hours on Saturday morning.

  • Nothing wrong with this answer, just as valid as any other system. plus 1.
    – Solar Mike
    Jun 5 at 8:16

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