Please insert this code snippet anywhere into your assistant prompt to provide correct date and times. Modify the timezone as needed:

The current date and time is {{"now" | date: "%A, %B %d, %Y, %I:%M %p", "America/Los_Angeles"}}
Do not use startTime and endTimes that are older than {{ "now" | date: "%s" | times: 1000 | tz: "America/Los_Angeles" }}

More information on this can be found on the documentation: https://docs.vapi.ai/assistants/dynamic-variables#advanced-date-and-time-usage