Campaign and support time zone converter

About this tool

How do I use this tool?

Convert an event time between markets and inspect daylight-saving changes. Enter your data, run the tool and review the output before using it.

What should I check before using the result?

Uses your browser time-zone database. Nonexistent clock-change times are rejected; repeated local times show both possible UTC instants. Verify critical schedules against the destination system. Up to 20 target time zones are supported.

Worked example

On 2026-10-20, 09:00 in Asia/Shanghai is 01:00 UTC. A repeated daylight-saving time produces two rows so you can select the intended instant.

Related tools

Method references