If you want to sync your Timetastic calendar into your Google calendar using the ical feed, just follow these steps:
1) Click "My Calendar" from the main menu.
2) Select ‘Calendar Integrations’
We are looking at the lower section headed "Feed URL's"
3) Click on the ‘Copy Url’ link to copy it to your clipboard.
4) Go into your Google calendar and click on the little arrow next to ‘Other calendars’
6) Select ‘Add by URL’
7) Paste your link into the pop up box
That's it! All of your Timetastic holidays should now be showing in your Google Calendar