diff --git a/includes/javascript-crons-automatic-crons-instrumentation.mdx b/includes/javascript-crons-automatic-crons-instrumentation.mdx
index e3caefc7f7627b..c8b047e3a1352b 100644
--- a/includes/javascript-crons-automatic-crons-instrumentation.mdx
+++ b/includes/javascript-crons-automatic-crons-instrumentation.mdx
@@ -177,7 +177,7 @@ scheduleWithCheckIn.scheduleJob(
 
 Requires SDK version `11.9.0` or higher and `graphile-worker` version `0.16` to `0.18`.
 
-Use `Sentry.graphileWorkerIntegration` to monitor the jobs that the [`graphile-worker`](https://www.npmjs.com/package/graphile-worker) crontab schedules:
+Use `Sentry.graphileWorkerIntegration` to monitor the jobs that the [`graphile-worker`](https://www.npmjs.com/package/graphile-worker) crontab schedules. Each run sends a check-in with the crontab schedule, in UTC, so Sentry creates the monitor on the first run:
 
 ```JavaScript
 Sentry.init({
@@ -193,4 +193,4 @@ Sentry.init({
 
 The monitor slug is the crontab item's identifier: its `id` option, or the task name if there's no `id`. `excludeCronJobs` skips items whose identifier matches a string exactly or a regular expression. Jobs are monitored by a process that runs the crontab, which `run()` does by default. Failed runs send an `error` check-in and report the error to Sentry.
 
-Check-ins are sent without a schedule, so create the monitors in Sentry first.
+Items with a custom `match` function check in without a schedule, so create those monitors in Sentry first.