How to Remove “Undefined” date in Blogspot Templates

When you upload a new blogspot template from third party designer to your blogspot and found that the date for your post was “undefined”. This is actually an error, then you have to correct it. This “Undefined” error will appeared in every post instead of the blog post date.

undefined error

The reason for this error is the blog timestamp does not match with the one required. To fix this error, you have to follow this simple steps:

1. Loging to your blogger dashboard
2. Go to Setting
3. Go to Formatting
4. Modify the Date Header Format, Archive Index Date Format and Timestamp Format as below.

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5. Click Save button.

5 comments on “How to Remove “Undefined” date in Blogspot Templates

  • AngryMammaDrama

    Hello. Tried using your instructions which also matched several other resources. Using this theme ( and have changed the header format and timestamp format to match what everyone is in agreement about and still have the Undefined error on my blog, Is there ANYTHING else I can do to resolve this issue?

  • John Mota

    thanks sooooooooooooooooo much.
    glory to god!!!

  • nila

    I dd,I still failed to fix my unfinded eror

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