HRS §1-29
Counting days for legal deadlines
This section explains how to count days for any legal deadline. You skip the first day and count the last day, unless the last day is a Sunday or holiday (then you skip it too). If court rules say so, you also skip a Saturday deadline.
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The statute, as written — Computation of time
The time in which any act provided by law is to be done is computed by excluding the first day and including the last, unless the last day is a Sunday or holiday and then it is also excluded. When so provided by the rules of court, the last day also shall be excluded if it is a Saturday.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.