How can i create a time line

i need to visualize a bar chart and have time frame of created date and updated date. but my X-axis can only hold either created or updated.i need to create where both can be seen

I'm not sure what visualization app you're using, but there is usually a way to create a new metric series in the chart. If you're trying to show lines from both fields, you can have 1 series show created date and another show updated date.

If you want to share more information about which app you are using or a screenshot of what you have going on, I can give more specific guidance

thanks for your help...cheers.