When people talk to my agent, it says the wrong day of the week. Like if it’s June 1, it says that it’s a Friday when it’s really a Sunday coming up

It sounds like your agent may be using UTC by default, which can cause the day of the week to be off for your users' local time. To fix this, explicitly set the timezone in your date formatting using LiquidJS in your prompt, like this:

{{"now" | date: "%A, %B %d, %Y", "America/New_York"}}

Replace

"America/New_York"

with your desired timezone. This should ensure the correct day of the week is spoken to users. Tip: Always specify the timezone to avoid mismatches between UTC and your users' local time. Source: - [Using dynamic variables in a phone call](https://docs.vapi.ai/assistants/dynamic-variables)

^ Using the date variable in your prompt is key to getting the correct day of the week

Do I have to replace the "A", "B", "d" and "Y" with something or just make sure the time zone is correct?

You do not need to replace the

%A

,

%B

,

%d

, or `%Y`—these are standard format codes that LiquidJS will automatically fill in for you. Just make sure your timezone is set correctly. For example:

liquid
{{"now" | date: "%A, %B %d, %Y", "America/New_York"}}

This will output the correct day of the week and date for your specified timezone. Tip: Only change the format string if you want a different output style; otherwise, leave it as is for standard results. Source: - [Using dynamic variables in a phone call](https://docs.vapi.ai/assistants/dynamic-variables#advanced-date-and-time-usage)

It seems to be working now that I added to the prompt to use the 2025 calendar but that’s only a short term fix because I don’t want to have to update it every year

You do not need to update the year in your prompt each year. To always get the correct day of the week and date, use the following syntax and set your desired timezone:

liquid
{{"now" | date: "%A, %B %d, %Y", "America/Los_Angeles"}}

This will automatically use the current date and year. If you still see issues, double-check for typos and ensure your environment supports the specified timezone. Reference: [Vapi dynamic variables documentation](https://docs.vapi.ai/assistants/dynamic-variables#advanced-date-and-time-usage) Source: - [Using dynamic variables in a phone call](https://docs.vapi.ai/assistants/dynamic-variables#advanced-date-and-time-usage)

That wasn't working to just do that without me saying "use 2025"

Could you send a copy of your prompt or at least the snippet that includes the date formatting and where it says "use 2025". A call id would also be helpful information for investigation purposes

Today I had someone demo it and they didn’t know the date they wanted and it thought that two months from now was December. I’ll send over the prompt shortly

What you have added should work with your prompt. Explicitly telling the assistant what the current date and time is for today is crucial for getting accurate dates and since you are using the variables, you won't have to update it every year.

Ok I hope so!

Let us know how it goes