This is a quick and completely unsupported HOW-TO tutorial for adding Google Calendar as a widget on your Word Press site.
First you need to access and modify your Google Calendar Embeddable code:
Choose the dafault View: Week
Locate from the iframe code: WEEK and replace it with DAY
Copy paste your HTML codeĀ
Log into your Word Press site and add a TEXT widget. Paste your HTML code and save.