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Extensions 
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Date Today for Google Chrome
The best clock to see in one glance the current date and time. With an option to see the digital clock in the browser toolbar.
History by Date
Browse your history by date, instead of infinite scroll. This extension is open source. It also respects your privacy.
* Navigate…
Date,Time,Weather and News
Displays the current Time, Date and Weather. and Displays the latest stories from various news feeds.
Today's Date
Today's date, week, day of the week, the roman year, how many days left to new year and some other fun info...
Start Page - Date and Time
Displays the current date and time with Bing's daily wallpaper on new tabs, with an optional weather widget
Google Search by date - horizontal bar
Always show the date selection in a horizontal menu. Adds 6 months, 2 years & 5 years and custom search ranges.
Bitbucket (+ others): absolute commit date
Converts dates from relative format to absolute (format presets) for Bitbucket.org, may for *.atlassian.com(jira) ...
Search Date Changer
This extension enables to add 'Publish date option' to Google search results URL and re-search by just oneclick.
Repo creation date checker for Github
Check creation date and last updated date of repo's on Github.
