WORKLAZY TOOLS
Timezone Converter
Select cities on the world map to compare local times and meeting schedules, automatically accounting for UTC and Daylight Saving Time.
Use this tool directly in your browser without installing software or signing in.
- World map pins
- Daylight saving time
- Working-hour overlap
- 44 major cities
Map and City Selection
You can select up to 6 cities using pins or city search. After zooming in, drag the map to check pins in dense areas.
Daylight Saving Time (DST)
Cities like New York, London, and Sydney have different transition dates. The time difference with UTC is calculated using the International standard city time zone (IANA) rules for the selected date.
Meeting Recommendations
Displays only the intervals (in 30-minute increments) where all selected cities are within their local 09:00~18:00.
Does the time difference between New York and Seoul change depending on the meeting date?
When scheduling an overseas meeting, select the date along with the cities. Areas using Daylight Saving Time may have changing time differences depending on the season, and evening in one region might be the next morning in another.
When meeting options appear, read the local dates and times for each city together. The recommended slots are the results of comparing preset local business hours on the screen, and do not account for the actual work schedules of the companies involved or national public holidays.
Examples and Selection Help
Example sentence format: "Seoul: [Month] [Day] [Time] / Other City: [Month] [Day] [Time]". Use actual selection results instead of fixed time difference numbers, and separately indicate cities with different dates.
Frequently asked questions
Does it connect to an external map server while using the map?
No. The Natural Earth-based world map and city coordinates are distributed together as static assets.
Can I tap anywhere on the map to find a time zone?
No. Currently, you can only select major city pins registered with official time zone information and search results.
Are public holidays reflected?
This tool only compares time differences and local business hours, and does not reflect country-specific public holidays.
Is it an error if no overlapping times appear?
The designated business hours may not simultaneously overlap across all selected cities. Check the number of cities or the meeting date, and negotiate available times separately with the participants.
Are public holidays also recommended as business hours?
This tool compares time differences and local business hours, but does not reflect national public holidays. Check the holiday status of each region before confirming the meeting.