Function Problems

How to Use an Excel Formula to Select the Correct Semiannual Row by Date

Maira Mehtab Sep 22, 2026 869 views

Question details

The user needs a formula to extract the logged hours for a specific pilot from a semiannual row that corresponds to the current date.

Product: Excel
Device & OS: not provided
Scenario: Extracting pilot hours from a worksheet containing both annual and semiannual rows by determining which semiannual period includes today's date.
Observed behavior: The goal is to successfully return the correct hours by comparing the current date against the start and end dates of the defined semiannual periods in the dataset.

Before you start

Ensure that all period boundary dates in your worksheet are formatted as valid Excel dates (e.g., MM/DD/YYYY) rather than text, as lookup formulas will fail to calculate text-based dates.

Solution 1Recommended

Use a Date-Based Array Lookup with the TODAY() Function

Implement a formula that evaluates whether today's date falls between the start and end dates of each semiannual period, returning the hours from the matching row.

To extract the correct hours, you must use a logical comparison that checks if the current date is greater than or equal to the period start date, and less than or equal to the period end date.

Because workbook layouts vary (especially with mixed annual and semiannual rows), the formula must be adapted to your specific cell references.

Format Date Columns

Select the columns containing your semiannual start and end dates. Right-click, select 'Format Cells', choose 'Date', and apply a standard date format to convert any text dates into real Excel dates.

Define the Lookup Logic

Identify the columns for Pilot Name, Start Date, End Date, and Hours. You will need to match the specific pilot while simultaneously checking the date boundaries.

Apply the Formula

In your result cell, use a formula combining FILTER or INDEX/MATCH with boolean logic. For example, using FILTER: `=FILTER(Hours_Range, (Pilot_Range="Pilot Name") * (Start_Date_Range<=TODAY()) * (End_Date_Range>=TODAY()), "No Match")`.

Adjust Cell References

Modify the range names or cell coordinates in the formula to precisely match your workbook's layout, ensuring that the ranges are equal in size.

Formula Adaptation: If your organizational permissions restrict sharing test files, carefully double-check your row and column references locally to ensure the formula logic aligns with your mixed annual and semiannual structure.

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Use WPS Spreadsheet to Easily Look Up Date-Based Data

WPS Spreadsheet fully supports advanced array formulas and date functions like TODAY(), INDEX, MATCH, and FILTER, allowing you to seamlessly retrieve semiannual period data without formatting headaches.

1. Open your Workbook in WPS Spreadsheet: Launch WPS Office and open your existing .xlsx file containing the pilot hours.
2. Verify Date Formats: Highlight your date ranges, navigate to the 'Home' tab, and use the 'Number Format' dropdown to ensure they are recognized as 'Short Date'.
3. Insert the Lookup Formula: Click on the target cell, type your array formula using the TODAY() function, and press Enter to instantly retrieve the correct semiannual hours.

Fully compatible with Microsoft Excel formulas and .xlsx file formatsAdvanced function support for complex date-based lookups and conditional arraysIntuitive formatting tools to quickly detect and fix text-formatted datesLightweight, fast execution even with large datasets containing mixed reporting rows

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Frequently Asked Questions

Why does my date-based lookup formula return a #VALUE! or #N/A error?

This usually happens when the dates in your start or end columns are stored as text rather than valid Excel dates. Select the cells, format them as Dates, and you may need to double-click the cell and press Enter to refresh the format.

How often does the TODAY() function update?

The TODAY() function is volatile and updates automatically to the current system date every time the workbook is opened or recalculated.

Can I use this same logic for quarterly or monthly periods?

Yes. As long as you have distinct start and end date columns for each period, the logic comparing TODAY() against those boundaries will work regardless of whether the period is monthly, quarterly, or semiannual.

What if the current date does not fall into any defined semiannual period?

If TODAY() does not match any date range in your dataset, the lookup formula will fail to find a match. It is highly recommended to wrap your formula in IFERROR (e.g., `=IFERROR(your_formula, "Out of Range")`) to handle these scenarios gracefully.

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