Why does my timesheet say it overlaps an existing timesheet?
Last updated: November 10, 2026
Applies to: US W-2 employees, US independent contractors and Canadian T4 employees who enter their own time in the Ascen portal. If you are an International EOR employee working outside the US and Canada, you do not enter time in Ascen, so you will not see this message.
Summary: The message means you already have hours on your timesheet for that time, usually because your first attempt went through. Open Timesheets and check those dates: if the entry is there and correct, you do not need to do anything, and if it is wrong, correct the existing entry instead of adding a new one.
What the message means
The portal will not accept two entries covering the same hours. If any of your existing timesheets already covers part of the time you are entering, the new entry is rejected as an overlap. This includes hours on another assignment if you have more than one.
If you picked several dates in one go, only the dates that clash are listed under Not Created with the reason. The other dates are saved.
Check your Timesheets first
Log in at app.ascen.com and open Timesheets.
Look for the dates you were entering. If the entries are there with the status Awaiting approval, your hours have been submitted and are waiting for your approver to review them. You do not need to enter them again.
Check the date, start and end times, break and assignment on the existing entry.
If the existing entry is correct
There is nothing else to do. Only add shifts that are not on your timesheet yet.
If the existing entry is wrong
You entered it and it is still Awaiting approval: edit that entry to the correct hours, or delete it and enter them again. Do not add a second entry on top of it.
Your staffing partner, the client or a scheduling app entered or confirmed it: it can be locked even though it says Awaiting approval, and the correction has to come from whoever confirmed the shift. See Why can't I edit my timesheet when it still says Awaiting approval?
It is already Approved, or the weekly deadline has passed: you can no longer change it yourself. Email timesheets@ascen.com with the assignment, the date and what should change.
Other reasons you may see it
Approved time off on the same date: approved time off puts hours on your timesheet, so work hours for the same part of the day are rejected. See I can't enter my hours because they overlap approved time off.
Two blocks on the same day: you can add more than one entry for a day, but their times must not overlap. See Can I add more than one time entry for the same day?
Never change your real start or end times just to get an entry to go through.
If nothing is there and it still will not save
Email timesheets@ascen.com with the date, your clock-in and clock-out times, any unpaid break, the assignment name and a screenshot of the message. Ascen can enter the hours for you. See What to do if you can't enter or submit your timesheet.
Who to contact
Ascen, timesheets@ascen.com: correcting an approved entry, or hours that will not go in.
Ascen, support@ascen.com: changing an approved time-off request.
Your staffing partner: approvals, which assignment to record your time against, and hours they or the client entered.