Chrome versions 23 and newer

1. Click the icon depicting three horizontal lines in the top-right corner:
   
2. Click Settings
3. Click Show advanced settings... at the bottom of the page
   
4. In the section entitled "Privacy" click the button Content settings...


5. You now have two options:


Automatic cookie handling (recommended)
1. In the section entitled "Cookies" select the option Allow local data to be set
   


Add exceptions manually
1. Click the button Manage exceptions...
2. In the column entitled "Hostname pattern" type timeanddate.com into the text box
3. In the column entitled "Behavior" select "Allow"
4. Click Done
5. Click Done

Chrome versions 10 - 22

1. Click the "Spanner" icon in the top right of the browser window:
   
2. Click Options...
3. On the left side of the browser window click "Under the Hood"
4. In the section entitled "Privacy" click the button "Content settings..." 


5. You now have two options:


Automatic cookie handling (recommended)
1. In the section entitled "Cookies" select the option "Allow local data to be set" 


Add exceptions manually
1. In the section entitled "Cookies" click the button "Block sites from setting any data"
2. Click the button "Manage exceptions..."
3. In the column entitled "Pattern" type timeanddate.com into the text box
4. In the column entitled "Action" click the button "Allow"
   

Chrome versions 3 - 9

1. Click the "Spanner" icon in the top right of the browser window:
   
2. Click Options...
3. Change to the "Under the Hood" tab.
4. Scroll down until you see "Cookie settings:".
5. Set this to "Allow all cookies":