Ravi Sir's Cards › AWS
Scheduler vs cron rules
This revision card explains Scheduler vs cron rules. It starts from the need that nightly cleanup and one-off reminders are different scheduling jobs. It describes eventBridge rules can run on a cron/rate. EventBridge Scheduler adds one-time and timezone-aware schedules at scale. The how-to section covers how to use a rate(1 day) rule for daily reports; use Scheduler for “remind me at 2026-11-01 09:00 IST”. An example on the card is cloudWatch metrics show Invocations on the schedule; target Lambda logs the run time in IST.
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What this card says
Why do we need it?
Nightly cleanup and one-off reminders are different scheduling jobs.
What is it?
EventBridge rules can run on a cron/rate. EventBridge Scheduler adds one-time and timezone-aware schedules at scale.
cron / rate
How to do it
Use a rate(1 day) rule for daily reports; use Scheduler for “remind me at 2026-11-01 09:00 IST”.
Example
CloudWatch metrics show Invocations on the schedule; target Lambda logs the run time in IST.