Sync workflow schedules between Google Sheets and Google Calendar

Sync n8n Workflow Schedules to Google Calendar

Reads every workflow on your n8n instance every 30 minutes, extracts their schedule triggers, and keeps a matching recurring event on Google Calendar — one event per workflow, forever in sync.

How it works

Schedule Trigger (30 min) → GET /api/v1/workflows — fetch all workflows → Code: parsing — extract scheduleTrigger / cron nodes → Sheets: Lookup — read saved state (schedule, On Calendar, EventID) → Code: detect changes — create / update / skip ├─ create → build RRULE payload → Create event → write EventID to Sheets └─ update → delete old event (parallel) + create new event → write to Sheets

State is stored in a Google Sheets tab (n8n Scheduling). The sheet acts as the single source of truth between runs.

What gets a Calendar event

| Schedule type | Result | | -------------------------------------- | ---------------------------------------------------------- | | Daily | DAILY recurring event | | Weekly (with or without specific days) | WEEKLY recurring event | | Monthly | MONTHLY recurring event | | Hourly | 1 DAILY event at 00:MM (not 24 — avoids GCal rate limit) | | Cron / minutely | Skipped — not supported by Google Calendar RRULE | | This workflow itself | Always skipped |

Prerequisites