### Answer Retell AI provides a built-in dynamic variable

{{current_time}}

that you can use in your prompt to give the agent awareness of the current date and time. [(1) ]() , [(2) ]() , [(3) ]() How to use it: Add the current time to your agent's context/prompt like this:

The current date and time is {{current_time}}

[(1) ]() Important notes: -

{{current_time}}

defaults to Los Angeles (PST) timezone. , [(2) ]() , [(3) ]() - For other timezones, you can use the format

{{current_time_[timezone]}}

, for example:

{{current_time_America/New_York}}

or

{{current_time_Australia/Sydney}}

. [(4) ]() - There's a feature request for more flexible timezone-aware current_time syntax. [(2) ]() , [(3) ]() Workaround for timezone flexibility: If you need precise timezone control, many users send a custom variable via the inbound webhook (or in the API call for outbound) with the local time/date. [(2) ]() , [(3) ]() Pro tip: When using calendar functions (like booking appointments) , include

{{current_time}}

in your prompt before triggering availability checks or booking functions to help the LLM correctly interpret dates. [(5) ]()

​ To learn more, see the sources I considered: [[1] Part 1: BuildYour First Retell Voice Al Agent That Sells Cars]() [[2] Discord message from @zz4chy on 2025-03-08](https://discord.com/channels/1186424376300679209/1294891368505937952/1347968047993848002) [[3] Discord message from @truthseeker28 on 2025-03-08](https://discord.com/channels/1186424376300679209/1294891368505937952/1347964389671698444) [[4] Issue with current date](https://discord.com/channels/1186424376300679209/1432663702485864448) [[5] Urgent: Cal.com Booked on different day - Potential Service Disruption with multiple issue.](https://discord.com/channels/1186424376300679209/1423174290458808381) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.