What Time Is It in Bonaire, Saint Eustatius and Saba Right Now?

One offset, no changes. Bonaire, Sint Eustatius and Saba keep Atlantic Standard Time at UTC−4 every day of the year, with no summer time and no seasonal switch. Subtract four hours from UTC and that is local time on all three islands; the converter above does the same sum against any city you name.

• Offset: UTC−4, unchanging

• Zone name: Atlantic Standard Time (AST)

• Seasonal change: None

• Islands on separate clocks: None of the three

Caribbean Netherlands Time Zone Quick Reference

No night lighting. Saba's airport has the shortest commercial runway in the world, about four hundred metres between a hillside and a cliff, with neither runway lighting nor an instrument approach - so flights operate in daylight only, on small short-field aircraft. The offset never moves, so a printed schedule looks identical in January and July, but the last usable slot is set by sunset rather than the timetable, and sunset shifts by roughly an hour across the year: little by European standards, enough to decide whether a late afternoon flight goes at all. Bonaire's airport works to no such limit, so inside one time zone the operating day ends at two different points.

Why One UTC Offset Covers Islands in Two Groups

Hundreds of kilometres apart. The three special municipalities are not one archipelago: Bonaire lies off the South American coast, Sint Eustatius and Saba far to the north-west among the Leeward Islands. They share one reading regardless, recorded under a single identifier named for Bonaire's capital. Nothing separates them on the clock - only on the map.

Daylight Saving Time the Islands Never Adopted

Not a Dutch schedule here. The European Netherlands changes its clocks twice a year under EU rules; these islands never have. Day length varies too little across the year for a seasonal shift to buy anything, and every neighbouring territory on this offset takes the same view - Curaçao, Aruba and Sint Maarten all hold UTC−4 without adjustment. Nothing here would produce a switch, and any change to European rules would have no effect on this side of the Atlantic.

Every change belongs to the other column. Willemstad, Bogotá and São Paulo never vary, because each holds a fixed offset exactly as these islands do. The four remaining rows all move, and none of the movement happens here: New York, London, Amsterdam and Los Angeles each shift their own clocks, which opens or closes the gap while the island reading stays at UTC−4 throughout.

Aligned west, split east. The working day overlaps the North American east coast almost exactly - identically through the northern summer, an hour apart in winter - so most commercial traffic runs that way without arithmetic. Amsterdam is the awkward one: five or six hours ahead depending on the season, so a Dutch office closes around the middle of the island morning and the overlap is a narrow band at the start of the day. Inter-island flights and ferries print departures in local time at each end, which here means the same clock at both. Always confirm schedules directly with the operator.

Do the islands follow the Netherlands' clock changes?
No. The European part of the country switches twice a year; these islands hold UTC−4 continuously, so the gap between them widens each northern spring.

Is the time the same on all three islands?
Yes, at the same instant, despite the distance between the two island groups.

Why is the identifier named after Kralendijk?
Because the database names entries after a principal settlement, and Kralendijk is the seat of government for the group. It says nothing about the other two islands keeping a different reading - they do not.

Is Atlantic Standard Time the same as US Eastern Time?
Only through the American summer. Atlantic Standard Time is a fixed UTC−4, while the US eastern zone alternates between UTC−5 and UTC−4, so the two match for part of the year only.

Do timetables here use the 24-hour clock?
Both forms appear. Airline schedules generally use 24-hour notation, while everyday usage often keeps the 12-hour form with am and pm.

Which nearby islands keep the same offset?
Curaçao, Aruba and Sint Maarten among the Dutch-linked territories, along with much of the eastern Caribbean, all on UTC−4 without seasonal changes.

Related Guides

• Time in the Netherlands

• Time in Curaçao

• Time in Aruba

• Time in Sint Maarten