If your spouse was covered by a retirement plan at work for only part of the year, does that impact the MAGI threshold for determining max deduction for IRA contribution?

There is one MAGI range for those who were covered by a retirement plan at work and another range when you and/or your spouse were not covered by a retirement plan at work. I'm trying to determine which range is applicable to us when my spouse did not have a retirement plan at work for much of 2023, and whether we would be able to save on our 2023 taxes by contributing to an IRA by 4/15/2024.