Highlight Earliest Events Based on Date Column in Google Sheets

Are you tired of manually searching for the earliest events in your Google Sheets? Well, fret no more! In this article, I will show you how to effortlessly highlight the earliest events based on a date column in Google Sheets. It’s time to say goodbye to the hassle of sorting and searching through your data. Let’s dive in!

The Logic Behind Highlighting Earliest Events

The first step is to extract the earliest events based on the date column. Once we have identified these events, we can then find their corresponding row numbers. By highlighting the cells that match these row numbers, we can easily spot the earliest events in our data.

Custom Formula to Highlight Earliest Events Based on Dates

Now, let’s get into the nitty-gritty of writing the custom formula for highlighting the earliest events. But don’t worry, I’ll guide you through it step-by-step, making it easy for you to adapt it to your own records.

Sample Data and Expected Results

Before we dive into the formula, let’s take a look at a sample dataset and the expected results. As you can see in the example, the earliest events in column A are highlighted. By changing the date and time in cell B11, you can see how the highlighting dynamically adjusts to reflect the earliest event.

Highlight earliest events based on date - Example

Sorting Events in Ascending Order Based on Dates

To start off, we need to sort the events in ascending order based on the booking date. This can be easily done using the SORT function. Simply enter the following formula in cell D2:

=sort($A$2:$A,$A$2:$A,1,$B$2:$B,1)

This formula will sort column A in ascending order and column B in ascending order. By referencing this sorted data, we can now proceed to the next step.

Finding Row Numbers of Earliest Events

Next, we want to find the row numbers of the earliest events based on the date column. This step is crucial in identifying the specific cells that need to be highlighted. To achieve this, modify the previous formula in cell D2 as follows:

=sort({if($B$2:$B<>"",row($A$2:$A),""),$A$2:$A},$A$2:$A,1,$B$2:$B,1)

This new formula will return the row numbers in column D and the corresponding event names in column E. By using this data, we can move closer to highlighting the earliest events.

Removing Duplicate Events to Extract Earliest Events Only

Now that we have the row numbers and event names, we need to remove any duplicate events and extract only the earliest events. To accomplish this, we will use the SORTN function. Modify the previous formula in cell D2:E as follows:

=sortn(sort({if($B$2:$B<>"",row($A$2:$A),""),$A$2:$A},$A$2:$A,1,$B$2:$B,1),9^9,2,2,1)

By applying this formula, we can ensure that only the earliest events are displayed, eliminating any duplicates.

Highlighting Row Numbers of the Earliest Events

At this point, we have a two-column output. However, we only need the first column, which contains the row numbers, for our conditional formatting. To extract this specific column, use the following formula:

=array_constrain(sortn(sort({if($B$2:$B<>"",row($A$2:$A),""),$A$2:$A},$A$2:$A,1,$B$2:$B,1),9^9,2,2,1),9^9,1)

This formula will provide us with the row numbers of the earliest events, which we can now use in our conditional formatting.

Final Formula for Conditional Formatting

To highlight the earliest events based on the date column, we can now use the following formula in our conditional formatting:

=regexmatch(row(A2)&"","^"&textjoin("$|^",true,array_constrain(sortn(sort({if($B$2:$B<>"",row($A$2:$A),""),$A$2:$A},$A$2:$A,1,$B$2:$B,1),9^9,2,2,1),9^9,1))&"$")

Simply select the range of cells you want to highlight (e.g., A2:A12) and apply the formula as a custom conditional formatting rule. This will automatically highlight the earliest events based on the date column, saving you time and effort.

And there you have it! With this simple custom formula, you can easily highlight the earliest events in your Google Sheets. Say goodbye to tedious manual searching and sorting, and let Google Sheets do the work for you.

If you want to explore more tips and tricks for Google Sheets, visit Crawlan.com for a wealth of informative articles. Happy highlighting!

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