How to Highlight Entire Rows Based on a Date Using Conditional Formatting
Question details
The user wants to format and highlight entire rows in a spreadsheet automatically, provided the first cell of the row contains a date, while leaving rows without dates unchanged.

- Product
- Spreadsheet
- Device & OS
- not provided
- Scenario
- Organizing and visually tracking large datasets by highlighting records that have been assigned a valid date.
- Observed behavior
- Only the rows with a valid date value in the specified column receive the highlighting fill color, while rows containing blank cells or plain text remain unformatted.
Ensure your date column actually contains valid date values rather than text. In spreadsheets, dates are stored as serial numbers, which is essential for formula-based formatting rules to work correctly.
Use Formula-Based Conditional Formatting
Apply a conditional formatting rule using the ISNUMBER function to verify if the target cell contains a date, applying the highlight across the entire row.
Because spreadsheet programs store dates as serial numbers, using a formula to check if the cell is a number will accurately identify dates. To highlight the entire row, you must lock the column reference using a dollar sign ($) so the formatting rule applies across all columns in that row.
Highlight the entire range of data you want to format, starting from the first row of your data (e.g., A2:Z100). Do not include the header row in your selection to avoid accidental highlighting.
Navigate to the 'Home' tab on the top ribbon. Click on 'Conditional Formatting', and from the dropdown menu, select 'New Rule'.
Choose the option 'Use a formula to determine which cells to format'. In the formula box, enter `=ISNUMBER($A2)` (assuming column A contains your dates and your selection started at row 2). The dollar sign ($) is crucial as it locks the column reference while allowing the row reference to adapt.
Click the 'Format' button, switch to the 'Fill' tab, and choose the background color you want for the highlighted rows. Click 'OK' twice to apply the formatting rule.

Highlight Rows Instantly with WPS Spreadsheet
Easily apply formula-based conditional formatting to your data. WPS Spreadsheet offers a highly intuitive interface to highlight rows, analyze data, and manage dates with seamless compatibility.
- 1. Select Range: Open your workbook in WPS Spreadsheet and select the data rows you wish to format, avoiding the headers.
- 2. Access Conditional Formatting: Go to the 'Home' tab and click 'Conditional Formatting', then choose 'New Rule'.
- 3. Input the Rule: Select 'Use a formula', input `=ISNUMBER($A2)` (adjust 'A' to your date column), set your desired fill color, and click 'OK'.

Frequently Asked Questions
Why is my conditional formatting highlighting the wrong rows?
This typically occurs if your formula references a row that doesn't match the start of your highlighted selection, or if you forgot the absolute reference ($) before the column letter. Ensure your formula starts with the active cell of your selection, such as =$A2.
How can I format rows based on a specific date range instead of just any date?
You can modify your conditional formatting formula to check for conditions. For example, to highlight rows where the date is after January 1, 2023, use a formula like `=$A2>DATE(2023,1,1)`.
Can I use this method to highlight rows where the date is missing?
Yes, to highlight rows that do not have a date or are completely empty, you can use the ISBLANK function in your conditional formatting rule. Simply enter `=ISBLANK($A2)` as your formula.
What if my dates are imported as text?
If your dates are formatted as text, the ISNUMBER formula will not recognize them. You must first convert them to actual dates by using the 'Text to Columns' tool under the 'Data' tab, or by using the DATEVALUE function.




