SurayMN

Timezone Converter

Convert times across different time zones and find the best overlap for global meetings and calls.

Time zone rules change frequently due to government legislation. We update our database regularly to reflect the most current global time standards.

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Quick answers

Hong Kong ↔ Ulaanbaatar time difference

Hong Kong and Ulaanbaatar share the same time — no time difference.

Hong Kong: UTC+8 · Ulaanbaatar: UTC+8

Popular pairs: Seoul · Tokyo · Beijing · Hong Kong · Moscow · Istanbul · Berlin · London · New York · Los Angeles · Denver · Sydney

What is the time difference between Korea and Mongolia?

South Korea (UTC+9) is 1 hour ahead of Ulaanbaatar (UTC+8): noon in UB is 13:00 in Seoul. Japan is also UTC+9, so the same 1-hour gap applies.

Is there a time difference between China and Mongolia?

No. Beijing (UTC+8) shares the same time as Ulaanbaatar. China uses a single time zone (Beijing time) across the whole country.

What is the time difference between the US and Mongolia?

New York is 13 hours behind Ulaanbaatar in winter and 12 hours behind during daylight saving time. Los Angeles is 16 hours behind in winter and 15 in summer.

Is Khovd on a different time than Ulaanbaatar?

Yes. The western provinces of Bayan-Ölgii, Uvs and Khovd use UTC+7 — 1 hour behind Ulaanbaatar. All other provinces share UB's UTC+8.

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How to use

  1. 1

    Select your current or source time zone (e.g., London GMT or New York EST).

  2. 2

    Select the destination time zone or city you are converting to.

  3. 3

    Enter the time you wish to convert in the 'Time' field.

  4. 4

    The tool will instantly show the converted time and the date change (if applicable).

  5. 5

    Use the 'Meeting Planner' grid to see a visual overlap of working hours between the two zones.

Formula

Time is calculated using the Universal Coordinated Time (UTC) offset.

Frequently asked questions

What is the difference between UTC and GMT?
GMT (Greenwich Mean Time) is a time zone used in parts of Europe and Africa. UTC (Coordinated Universal Time) is the global time standard that does not change for daylight savings. For most practical purposes, they are identical in time.
Does this tool account for Daylight Savings Time (DST)?
Yes. The converter automatically adjusts for DST shifts in regions like the US, Europe, and Australia based on the specific date you select.
What does 'UTC+8' mean?
This indicates that the time zone is 8 hours ahead of Coordinated Universal Time. For example, if it is 12:00 PM UTC, it would be 8:00 PM in a UTC+8 zone like Ulaanbaatar or Singapore.
Does Mongolia observe daylight saving time?
No. Mongolia trialled DST in 2015–2016 but abandoned it in 2017. Ulaanbaatar stays on UTC+8 all year round.
What is the time difference between Moscow and Ulaanbaatar?
Moscow (UTC+3) is 5 hours behind Ulaanbaatar: 15:00 in UB is 10:00 in Moscow. Russia hasn't observed DST since 2014, so the gap is constant year-round.