Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

How does a typical vesting timeline work with respect to employer contributions?
There are two dates that matter for vesting in this situation: If you left the company on 12/31/16, you would be entitled to none of the company contributions. If you left on 1/1/17, you would be entitled to all $20k. This is sometimes known as a cliff vesting schedule. Some companies do a stair step - 20% after year 1, 40% after year 2, etc. This is known as graded vesting. But, that is not the case based on the language here.