ULAST — Ulaanbaatar Summer Time

See what ULAST means, when this UTC+9 daylight saving time is used, and compare it with other time zones.

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UTC · UTC
Coordinated Universal TimeGMT +00Sat, Apr 11
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UTC
Coordinated Universal TimeGMT +00Sat, Apr 11
12AM3AM6AM9AM12PM3PM6PM9PM
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Meaning and Usage Details

ULAST stands for Ulaanbaatar Summer Time and represents UTC+9. This abbreviation is used for daylight saving time observance associated with Ulaanbaatar time.

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DST Relationship Explained

ULAST is the summer-time variant of standard time in its region, used only during daylight saving periods. The page tracks seasonal changes and shows when clocks shift automatically.

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Convert Across Time Zones

Compare ULAST with other time zones using the visual time grid and hour-by-hour tables. Export schedules 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 load the comparison grid with ULAST pre-selected. This view is useful when you need to line up work hours across UTC+9 locations, such as coordinating a call with teams that operate on the same offset as JST, KST, or IRKST.

  2. Add comparison cities or time zones: Click + Add City and search for the locations or abbreviations you want to compare against ULAST. A practical setup is to add time zones that share the same UTC+9 offset, such as JST or KST, so you can confirm that a planned work block aligns exactly across multiple regional teams without manual calculation.

  3. Select a meeting window on the grid: Click Select to enter selection mode, then drag across the ULAST row to highlight a time range in purple; use the left and right handles to fine-tune the start and end, or drag the center to move the whole block. For example, if you highlight a 9:00 to 11:00 work window in ULAST, the grid lets you instantly compare that block against every added row, which is especially helpful for scheduling handoffs, support coverage, or shared engineering hours.

  4. Export and share the selected range: Once a range is selected, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is useful when you want to send a confirmed ULAST-based meeting slot to distributed teams so each participant receives the event in their own local calendar without re-entering the time manually.

About Ulaanbaatar Summer Time (ULAST)

ULAST stands for Ulaanbaatar Summer Time. It is a daylight saving time abbreviation with an exact offset of UTC+9, meaning it is 9 hours ahead of Coordinated Universal Time.

ULAST is specifically identified as a DST abbreviation, so it represents a summer-time observance rather than a year-round standard offset label. Its standard counterpart is not specified here, which means the most reliable use of ULAST is as an exact shorthand for UTC+9 during the daylight saving period.

ULAST shares the same UTC+9 offset with several other abbreviations: AWDT, CHOST, I, IRKST, JST, KST, PWT, TLT, WIT, and YAKT. In practical scheduling terms, that means when it is 09:00 in ULAST, it is also 09:00 in any of those same-offset time zones, which can simplify coordination across East and Northeast Asian business hours.

ULAST and Daylight Saving Time

ULAST is a daylight saving time abbreviation rather than a standard-time abbreviation. That means it refers to the summer-time version of the zone, with the clock set to UTC+9 while daylight saving time is in effect.

Because ULAST is explicitly a DST label, it changes as part of a daylight saving cycle rather than remaining fixed year-round under the same abbreviation. The exact switch dates for the current year are not included here, so the key point for scheduling is that ULAST denotes the daylight saving period at UTC+9, and any seasonal change will affect whether this abbreviation is currently in use.

For business coordination, this matters when you are booking recurring meetings across regions. A team may see the same local working pattern under ULAST during the summer period, but recurring calendar events should always be reviewed around seasonal clock changes to avoid one-hour shifts in attendance windows.

Frequently Asked Questions

What does ULAST stand for?

ULAST stands for Ulaanbaatar Summer Time. It is used as a daylight saving time abbreviation and identifies a local time that runs at UTC+9 during the summer-time period.

Is ULAST the same as GMT?

No, ULAST is not the same as GMT. ULAST is UTC+9, so it is 9 hours ahead of Greenwich Mean Time, which means a 09:00 time in ULAST corresponds to 00:00 in GMT.

Which cities use ULAST?

ULAST expands to Ulaanbaatar Summer Time, so it is associated with the Ulaanbaatar summer-time designation. If you are comparing schedules visually, the converter is the easiest way to place ULAST alongside other time zones and confirm overlap for meetings or travel planning.

What is the UTC offset for ULAST?

The UTC offset for ULAST is UTC+9. This means ULAST time is 9 hours ahead of Coordinated Universal Time, which is the key reference point used for international scheduling, aviation planning, and cross-border calendar coordination.

When does ULAST change?

ULAST is a daylight saving time abbreviation, so it changes as part of a seasonal DST cycle rather than staying in effect year-round. The exact transition dates for the current year are not specified here, so if you are arranging time-sensitive meetings, it is best to confirm the active abbreviation on the date you plan to meet.

Is ULAST a standard time or a daylight saving time?

ULAST is a daylight saving time abbreviation. It represents the summer-time version of the zone at UTC+9, not a standard-time label.

Which time zones have the same offset as ULAST?

Several abbreviations share the same UTC+9 offset as ULAST: AWDT, CHOST, I, IRKST, JST, KST, PWT, TLT, WIT, and YAKT. This is useful for remote teams because a meeting scheduled in ULAST at 14:00 will line up at 14:00 in any of those same-offset abbreviations as well.