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https://issues.apache.org/jira/browse/AIRFLOW-3277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ash Berlin-Taylor resolved AIRFLOW-3277.
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Resolution: Fixed
> Invalid timezone transition handling for cron schedules
> -------------------------------------------------------
>
> Key: AIRFLOW-3277
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3277
> Project: Apache Airflow
> Issue Type: Bug
> Affects Versions: 1.10.0
> Reporter: Bolke de Bruin
> Priority: Blocker
> Fix For: 1.10.1
>
>
> `following_schedule` converts to naive time by using the local time zone. In
> case of a DST transition, say 3AM -> 2AM ("summer time to winter time") we
> generate date times that could overlap with earlier schedules. Therefore a
> DAG that should run every 5 minutes will not do so if it has already seen the
> schedule.
> We should not convert to naive and keep UTC.
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