Timezone abbreviation
KOST currently resolves here through Pacific/Kosrae, where the live offset is +11:00 (GMT+11). This page expands that into the broader meaning set, top cities, countries, similar labels, and safer exact-zone equivalents.
Representative zones, offset ranges, and city usage are refreshed from the current timezone dataset so abbreviation pages stay tied to real zones instead of static boilerplate.
KOST is used in this dataset for Kosrae Time. Right now it maps to 1 meaning, 1 IANA zone, and 1 country.
This page uses Pacific/Kosrae as the live reference at +11:00 (GMT+11). KOST works more as a reference label here than as a city-anchored civil-time label, so the IANA zone is what carries the practical weight.
KOST is stable on Pacific/Kosrae year-round, with no seasonal clock changes in the next year. That makes it a low-friction choice for recurring meetings and broadcast schedules — but software still prefers the IANA zone because governments can change civil-time rules independently of the short code.
Live reference
Pacific/Kosrae
Current offset
+11:00 (GMT+11)
Meanings / zones / countries
1 / 1 / 1
Offset range
UTC+11:00
KOST is far ahead of UTC, into the Pacific island band, so the same calendar day finishes here before North America wakes up. In practice it is read inside Atlantic, Pacific, or Indian Ocean island cluster, where the leading city anchors are reference-only timezone clusters.
KOST is unusually unambiguous: it ties to a single country and a single IANA zone, which is closer to a national clock label than a multi-region abbreviation.
KOST shows up on airline schedules, weather bulletins, and Pacific shipping notices more than on office calendars. KOST stays on a single offset year-round in the current data, which simplifies its operational use.
Zone family, representative city, current offset, country coverage, and nearby abbreviation context for KOST.
Primary zone
Pacific/Kosrae
Live offset
+11:00 · GMT+11
Region family
Atlantic, Pacific, or Indian Ocean island cluster
Meaning count
1 meaning
Zone / country reach
1 zones · 1 countries
Country anchor
Micronesia
DST posture
No upcoming seasonal clock change detected in the representative zone
Offset range
UTC+11:00
Data fingerprint
This compact fingerprint is intentionally specific: exact zone IDs, place anchors, country anchors, transition cues, and offset peers. It gives humans and crawlers concrete reasons not to collapse KOSTinto another abbreviation with the same clock hour.
Route identity
kost · KOST · Kosrae Time · Pacific/Kosrae
Exact IANA zone set
Pacific/Kosrae
Place anchors
Micronesia
Country anchors
Micronesia (Pacific/Kosrae)
Transition fingerprints
Pacific/Kosrae: no next-year switch
Offset peers to verify
AEDT (Australia/Sydney), AEST (Australia/Sydney), LHST (Australia/Lord_Howe), NCT (Pacific/Noumea), SAKT (Asia/Sakhalin), SBT (Pacific/Guadalcanal), VUT (Pacific/Efate)
Abbreviation dossier
These checks separate the abbreviation from lookalike labels and same-offset codes: the representative IANA zone, the current civil-time reading, the city/country footprint, and whether the lead zone has an upcoming clock change.
Primary live reading
Kosrae Time resolves through Pacific/Kosrae right now: +11:00 (GMT+11).
Ambiguity status
KOST maps to one meaning in this catalog, but the IANA zone still matters because clock-change rules live on the zone, not the short code.
DST and transition posture
Pacific/Kosrae has no scheduled offset switch in the next year in this snapshot.
Country and city reach
KOST is represented across 1 country, 1 IANA zone, and lead cities including Micronesia.
Same-offset caution
KOST and AEDT currently share +11:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.
Precision layer
Timezone abbreviations are useful display labels, but they are weak storage keys. This register shows the exact risks for KOST: ambiguity, seasonal changes, same-offset neighbors, and the safer value to store in software, calendars, or operations notes.
Abbreviation ambiguity risk
MediumKOST has one meaning in this catalog, but the zone and country context still carry the legal-time rule.
Seasonal clock-change risk
LowPacific/Kosrae is stable for the next-year transition scan, so the main risk is policy change or same-offset confusion.
Same-offset confusion risk
Medium7 other abbreviation pages currently share +11:00; the same clock hour is not the same civil-time context.
Storage recommendation
Use exact zoneStore Pacific/Kosrae or a UTC instant. Display KOST only as a human-facing label after the exact zone is known.
Coverage breadth
1 zonesKOST covers 1 IANA zone and 1 country grouping in this page's retained dataset.
Four fixed UTC checkpoints expose whether KOST crosses a local date boundary in Pacific/Kosrae. This is the practical difference between a harmless clock conversion and a deadline, release, travel, or reporting mistake.
KOST keeps this checkpoint on the same calendar date as UTC in Pacific/Kosrae.
KOST keeps this checkpoint on the same calendar date as UTC in Pacific/Kosrae.
KOST moves this checkpoint to the next local date in Pacific/Kosrae, which matters for reports, releases, travel, and deadline wording.
KOST moves this checkpoint to the next local date in Pacific/Kosrae, which matters for reports, releases, travel, and deadline wording.
These abbreviation pages currently share +11:00with KOST. They can show the same wall-clock hour while pointing at different countries, holidays, market calendars, languages, airports, and legal-time rules.
Australian Eastern Time
AEDT shares the current UTC offset with KOST, but it is anchored to Australia/Sydney and Australia. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.
Australian Eastern Time
AEST shares the current UTC offset with KOST, but it is anchored to Australia/Sydney and Australia. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.
Lord Howe Time
LHST shares the current UTC offset with KOST, but it is anchored to Australia/Lord_Howe and Australia. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.
New Caledonia Time
NCT shares the current UTC offset with KOST, but it is anchored to Pacific/Noumea and New Caledonia. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.
Sakhalin Time
SAKT shares the current UTC offset with KOST, but it is anchored to Asia/Sakhalin and Russia. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.
Solomon Islands Time
SBT shares the current UTC offset with KOST, but it is anchored to Pacific/Guadalcanal and Solomon Islands. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.
Vanuatu Time
VUT shares the current UTC offset with KOST, but it is anchored to Pacific/Efate and Vanuatu. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.
The hardest abbreviation mistakes happen when two labels share a similar offset. This matrix spells out what changes when the neighboring label is actually a different civil clock, city cluster, or source context.
KOST and AEDT currently share +11:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.
KOST and AEST currently share +11:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.
KOST and LHST currently share +11:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.
KOST and NCT currently share +11:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.
KOST and SAKT currently share +11:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.
KOST and SBT currently share +11:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.
Micronesia sits in Oceania, specifically Micronesia. Population 105,564, area 702 km², capital Palikir. Civic markers behind KOST include English and USD (United States dollar, $).
Micronesia is linked as the country-level reference source for KOST; the civic context above is drawn from structured country fields rather than copied reference prose.
KOST in the Kosrae Time meaning runs 11h ahead of UTC through Atlantic, Pacific, or Indian Ocean island cluster, threading zones such as Pacific/Kosrae (cities: reference cities). Country anchors: Micronesia.
Kosrae Time
Current reading: GMT+11 at +11:00 in Micronesia.
Pacific/Kosrae does not show a scheduled offset change in the next year, so the current offset can be treated as operationally stable for short-term planning.
City anchors include reference cities, while country anchors include Micronesia.
Live reference zone: Pacific/Kosrae (GMT+11, +11:00)
Cities: reference-only mappings. Countries: Micronesia.
Live zones: Pacific/Kosrae (+11:00).
Countries
Micronesia
Top cities
Reference-only meaning
Micronesia runs on a single zone (0 mapped cities) under KOST. Visible cities: the lead reference city. Underlying zones: Pacific/Kosrae.
City anchors for KOST (Atlantic, Pacific, or Indian Ocean island cluster, currently +11:00). Pick a city to drop into a live local clock.
Micronesia
Zones: Pacific/Kosrae
Meaning group: Kosrae Time
KOST is not heavily split in the current catalog, but the short label still hides the underlying IANA zone and any future policy change. The safe pattern is to write the abbreviation for humans and the zone for machines.
Pacific/Kosrae does not show an offset change in the next year, which makes KOST predictable for short-term scheduling. Predictable is not the same as permanent — civil-time rules still get changed by governments on relatively short notice.
For precise work, the safest equivalent of KOST is the exact IANA zone used by your city or system. Pacific/Kosrae sits at +11:00, ahead of UTC, which means daily logs in this zone reach a new calendar date before UTC does — a small detail that breaks date-based reporting if missed.
Within this single zone (Pacific/Kosrae, +11:00), KOST is unambiguous, so the abbreviation and the IANA zone effectively interchange.
The next best click after an abbreviation page usually depends on whether you need a city, a converter, or a live clock.
Timezone converter
Turn this abbreviation into a practical conversion pair and scan full time tables.
World clock
Open live clocks once the abbreviation question turns into a city-by-city decision.
Browse city pages
Find the strongest city pages that make abbreviation families concrete.
Browse market hours
See where timezone abbreviations become real exchange-opening and handoff decisions.
