ULAST — Ulaanbaatar Summer Time

See what ULAST means, its UTC+9 offset, when daylight saving time applies, and how to compare it with other time zones.

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Coordinated Universal TimeGMT +00Tue, Jul 21
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UTC
Coordinated Universal TimeGMT +00Tue, Jul 21
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Meaning and Usage Areas

ULAST stands for Ulaanbaatar Summer Time and uses a UTC+9 offset. It is associated with daylight saving time usage in Mongolia, especially around Ulaanbaatar.

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Daylight Saving Relationship

ULAST is the summer-time form of local time in Ulaanbaatar, used when daylight saving time is in effect. This page helps you understand how the DST period changes the standard offset.

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Convert With Other Zones

Compare ULAST with other time zones using visual time grids and hour-by-hour tables. Export meeting times with ICS download or send to Google Calendar and Gmail.

How to Convert ULAST to Other Time Zones

  1. Open the ULAST converter page: Visit https://www.xconvert.com/time-converter/ulast-time-zone to open the visual comparison grid with ULAST pre-loaded. This layout is useful when you need to line up working hours across regions that share or compare against UTC+9, such as scheduling a call with teams operating on East Asian business hours or coordinating a handoff across multiple Asia-Pacific offices.

  2. Add comparison cities or time zones: Click + Add City and search for the places or zones you want to compare against ULAST. Good comparisons include cities or regions that commonly work around the same offset family or nearby Asian trading and operations windows, especially when you need to compare ULAST with other UTC+9 abbreviations such as JST, KST, or IRKST for regional operations, logistics, or support coverage.

  3. Select the time range on the grid: Click Select to enter selection mode, then drag across the ULAST row to highlight the hours you want to compare; the selected block turns purple and can be adjusted with the left and right handles or moved by dragging the center. For example, if you are trying to find a practical meeting window during ULAST work hours, the colored grid helps you quickly see whether your chosen block falls into green work-hour slots, yellow evening slots, or gray night-time slots in the other rows you added.

  4. Export and share the result: Once a range is selected, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is especially useful when you need to send a confirmed meeting window to a distributed team so each participant receives the correct local time in their own calendar system without manually converting from UTC+9.

About Ulaanbaatar Summer Time (ULAST)

ULAST stands for Ulaanbaatar Summer Time. Its exact offset is UTC+9, which places it nine hours ahead of Coordinated Universal Time.

ULAST is a daylight saving time abbreviation, not a standard-time abbreviation. A standard counterpart is not listed here, so the key practical point for conversion is that ULAST represents a seasonal UTC+9 clock setting rather than a year-round base abbreviation.

Several other abbreviations share the same UTC+9 offset: AWDT, CHOST, I, IRKST, JST, KST, PWT, TLT, WIT, and YAKT. This matters when comparing schedules, because two labels can differ in name and regional usage while still showing the same clock time at a given moment if both are on UTC+9.

ULAST and Daylight Saving Time

ULAST is specifically a daylight saving abbreviation, which means it refers to a summer-time clock setting rather than a non-seasonal standard setting. In practical scheduling terms, that matters because daylight abbreviations are used during a limited part of the year and may not apply outside the DST period.

No switch dates are available here, and no standard counterpart abbreviation is identified. Because of that, the most reliable fixed fact for planning is the active offset itself: when ULAST is in use, it is UTC+9.

ULAST Compared With Other UTC+9 Abbreviations

ULAST shares its offset with AWDT, CHOST, I, IRKST, JST, KST, PWT, TLT, WIT, and YAKT. If you are organizing a meeting across teams that use any of these abbreviations, the clock time aligns at the offset level because all of them are UTC+9.

This is useful for remote operations, customer support routing, and calendar coordination because offset-matched zones reduce conversion errors. When the grid shows ULAST alongside another UTC+9 abbreviation, the hour blocks line up directly, making it easier to spot overlapping work periods and export a meeting invite without recalculating the difference.

Why ULAST Conversion Matters in Scheduling

ULAST conversion is most relevant when you are dealing with a UTC+9 schedule and need to compare it visually against other regions. The grid-based format is practical for business calls, operations planning, and travel coordination because it shows whether a proposed time falls into work hours, evening, or overnight periods across all selected rows.

The visual selection workflow also helps avoid mistakes that happen when people rely only on abbreviations. Since multiple abbreviations can share UTC+9, seeing them aligned on the same 24-hour timeline makes it easier to confirm that the intended meeting window is actually suitable before sending an ICS file, a Google Calendar event, or a shareable link.

Frequently Asked Questions

What does ULAST stand for?

ULAST stands for Ulaanbaatar Summer Time. It is a daylight saving time abbreviation used for a UTC+9 clock setting rather than a generic label for all time in that region.

Is ULAST the same as GMT?

No. ULAST is UTC+9, while GMT refers to the zero-offset baseline used at UTC+0. That means ULAST is nine hours ahead of GMT, so the two should not be treated as interchangeable when scheduling calls or calendar events.

Which cities use ULAST?

No principal cities are identified here by name. What is clear is that ULAST refers to Ulaanbaatar Summer Time, and when this abbreviation is in use, the active offset is UTC+9.

What is the UTC offset for ULAST?

The UTC offset for ULAST is UTC+9. In practical terms, any meeting, deadline, or departure time labeled ULAST should be interpreted as nine hours ahead of Coordinated Universal Time.

When does ULAST change?

ULAST is a daylight saving time abbreviation, so it changes seasonally rather than representing a permanent year-round setting. Exact transition dates are not included here, and no standard counterpart abbreviation is identified, so the dependable conversion fact is that ULAST itself means UTC+9 when active.

Is ULAST a standard time or a daylight saving time?

ULAST is a daylight saving time abbreviation. That distinction matters because summer-time abbreviations can appear on schedules, archived records, or older calendar entries for only part of the year, while standard-time labels apply outside the DST period.

Which other abbreviations have the same offset as ULAST?

The abbreviations with the same UTC+9 offset are AWDT, CHOST, I, IRKST, JST, KST, PWT, TLT, WIT, and YAKT. This is helpful when comparing time zones in the converter, because rows with these abbreviations align on the same hour positions when they are all operating at UTC+9.