Applied to last day, but showing different submitted date

[evelynw3]

I'm applying to restore my status; it says I have until August 31, 2021 to apply here:
https://www.canada.ca/en/immigration-refugees-citizenship/services/coronavirus-covid19/restoration-extension-trv.html

As soon as I submitted my application at 4:30PM EST today, it's showing on my account I submitted September 1. I'm worried this might be an issue.

Any advice please.