assistant is not synced with calendar defined by LiquidJS in system prompt where as attached in screenshot Jan 8th 2026 is not a Friday, it is a Thursday although it said Jan 6th as Wednesday correctly Time zone defined : {{ "now" | date: "%A, %B %d, %Y, %I:%M %p", "Australia/Melbourne" }} Call ID : 019b3013-4830-7000-844a-2329591807ff https://cdn.discordapp.com/attachments/1451714973716709407/1451714974203252900/WhatsApp_Image_2025-12-18_at_8.12.01_AM.jpeg?ex=698db6ad&is=698c652d&hm=7eabd6022942ede328801f5183d1efcea51a06c1604e7135effd40da13fc9433&

Thank you for pointing out the mismatch between the day and date for January 8, 2026, in the meeting slots. Based on your description, it appears there is an inconsistency where January 8, 2026, is listed as a Friday, but it should be a Thursday in the Australia/Melbourne timezone. Since I do not have access to additional information or documentation, I cannot provide further details about why this mismatch occurred. However, your observation about the calendar discrepancy is clear and well noted.

Hi Ramy, Thanks — sounds like the assistant’s LiquidJS date formatting in the system prompt is producing the wrong weekday. From our docs the recommended format includes the weekday and timezone exactly like you used: {{"now" | date: "%A, %B %d, %Y, %I:%M %p", "Australia/Melbourne"}} (see https://docs.vapi.ai/assistants/dynamic-variables). Please try these checks (concise): 1. Confirm the system prompt contains the exact Liquid snippet including %A (weekday) and the Melbourne timezone string (no extra quotes or malformed brackets). - Correct example: The current date and time is {{"now" | date: "%A, %B %d, %Y, %I:%M %p", "Australia/Melbourne"}}. 2. Redeploy the assistant or clear the assistant cache after updating the prompt so the new prompt is used for calls. 3. If you use any server/webhook that returns dates (e.g., dynamic handoff or external calendar), ensure those responses return HTTP 200 and use the same timezone — inconsistent sources can cause weekday mismatches. 4. Reproduce the issue and paste the exact system prompt + the assistant message output for that call (call ID 019b3013-4830-7000-844a-2329591807ff). If possible include the raw assistant-rendered string that showed "Friday" for Jan 8, 2026.

how to clear the assistant cache @Vapi Support Bot ?

Hi, You can to set the

assistant.voice.cachingEnabled

to false, and then issue will be resolved.