Rule 500.4.Computation of Time; Timely Filing
Last verified June 28, 2026
Full Text of Rule 500.4
Plain-English Summary
Rule 500.4 sets the calendar rules. To compute a deadline, exclude the day of the triggering event, count every day including weekends and holidays, and include the last day — but if the last day is a Saturday, Sunday, or legal holiday, or a day the court closes before 5:00 p.m., the deadline moves to the next business day. A document due by a date is timely filed if deposited in the U.S. mail on or before that date and received within 10 days of the due date.
The judge may, for good cause, extend any period under these rules — except the periods relating to new trial and appeal, which are fixed.
Frequently Asked Questions
How are deadlines counted in Texas justice court?
Exclude the first day, count every day after, and if the last day is a weekend, holiday, or court-closed day, the deadline moves to the next business day (Rule 500.4).
Can a justice court extend a deadline?
Yes, for good cause — except the new-trial and appeal deadlines, which the judge cannot extend.