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Troubleshooting Date Import Issues in Webflow CMS (CSV) - A Comprehensive Guide

Webflow CMS is a powerful tool that offers a variety of features to help you manage your website's content. One of these features is the ability to import content from a CSV file, which can be incredibly useful when you're dealing with large amounts of data. However, if you've ever tried to import dates into Webflow CMS, you may have encountered some issues. Let's dive into these common problems and explore solutions to streamline your date import process.

The Problem

As reported by several Webflow users, one common issue when importing dates from a CSV file into Webflow CMS is the platform's refusal to add the date to any date type fields, despite the format following all the guidelines. This problem can be particularly frustrating when you have a large number of blog posts to import and need to maintain their original publish dates.

Example of the Issue

Josh Overton, a Webflow user, shared his experience on the Webflow forum about facing this exact issue. He was attempting to import 46 blog posts with their original publish dates from a CSV file. Despite the date format in his CSV file following all guidelines, Webflow CMS refused to let him add it to any date type fields. He was able to assign other fields without any problems, but the date field remained an obstacle.

The Solution

After some trial and error, Overton discovered that the solution was to switch the date format to the American format. This seemingly simple adjustment allowed him to successfully import his blog posts with their original publish dates.

Understanding Webflow's Date Format

Webflow CMS uses the ISO date format, which isn't exclusive to the USA as it uses a 24-hour clock rather than the AM/PM format. The ISO format appears in the form: YYYY-MM-DDThh:mm:ss.sTZD. The "TZD" represents the timezone. Therefore, if your site is set to GMT+1 (UTC+1), for example, you would format your date as follows: 2017-11-08T13:00+01:00.

When you import your date, Webflow ingests it and converts it into UTC. It then takes the UTC stored date and converts it into your site's date, using your timezone setting. In the CMS database and upon publishing, the computed date will display in the American AM/PM format.

Formatting Your CSV File

When preparing your CSV file for import, ensure that your date column is correctly formatted. You can do this by selecting the date column, right-clicking, and selecting Format Cells. Then, select Custom and enter yyyy-mm-dd in the text field. Once your CSV file is correctly formatted, you should be able to import it into Webflow CMS without any issues.

Considerations and Limitations

While switching the date format to the American format can solve the import issue, it's essential to be aware of some limitations. For instance, when manually entering a date in the CMS, you must add a time. However, when importing dates from a CSV file, you don't need to include a time. If you don't specify a time, Webflow CMS will default to 12:00 AM.

Additionally, some users have noticed that Webflow seems to remove a day from all dates during the import process. This may be due to timezone differences, and unfortunately, there may not be a straightforward solution if you can't provide the UTC time for each date. This means that your dates may be off by one day when imported.


While importing dates from a CSV file into Webflow CMS can be a bit tricky, with a careful understanding of the platform's date format requirements and some patience, you can successfully manage this task. Remember to format your CSV file correctly and be prepared to make adjustments as needed to ensure your dates are imported accurately.

As always, if you encounter any issues or have any questions, the Webflow forum is a great place to seek help and advice from other Webflow users.

Pro Tip: Leverage Webflow's API for Bulk Imports

If you're dealing with a significant amount of data, manual tweaking of date formats can be time-consuming. In such cases, you might find it helpful to leverage Webflow's API. This powerful tool allows you to automate the import process and save a lot of time.

However, it's important to note that this approach requires some technical knowledge and familiarity with APIs. You'll need to write a script that fetches your data from the CSV file, converts the date to the required format, and then sends it to Webflow using the API.

Here's a basic outline of what the process would look like:

  • Read your CSV file and convert it into a JSON object.
  • Loop over the JSON object and for each entry, convert the date to its ISO format.
  • Send a POST request to Webflow's API with the JSON object as the body.

This process will not only solve any date format issues, but it will also streamline your import process, especially if you're dealing with a large number of entries.

To learn more about how to use Webflow's API, check out their API documentation.

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