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GlobalTimeCompare

TIME ZONE CONVERTER – COMPARE UTC WITH ANY TIME ZONE

Choose a UTC date and exact time, or move the visual roller to compare matching local times and dates.

🇺🇸 Country scenery

Grand Canyon

SELECT COUNTRY / TIME ZONE

SELECT SECOND COUNTRY / TIME ZONE

SELECTED COUNTRY
🇺🇸

United States (Eastern)

US Eastern Time

00:54:15
ET
Mon, 19 Oct 2026UTC -04:00
REFERENCE CLOCK
🌐

UTC

Coordinated Universal Time

04:54:15
UTC
Mon, 19 Oct 2026UTC +00:00
SECOND COUNTRY
🇬🇧

United Kingdom

United Kingdom Time

05:54:15
GMT/BST
Mon, 19 Oct 2026UTC +01:00
Photo credit & license

Grand Canyon · Tuxyso · Wikimedia Commons source · CC BY-SA 3.0

Resized, converted to WebP; displayed with an overlay and responsive cropping. The image represents the country, not necessarily the selected city.

THE CLOCKS ABOVE ALWAYS SHOW THE LIVE CURRENT TIME. THE ROLLER BELOW IS A LOOKUP TOOL — ROTATING IT NEVER CHANGES THEM.

Choose a UTC date and time

Enter any minute for a past or future date. Results use the timezone rules for that moment; the clocks above stay live. The roller moves in 30-minute steps from your selection.

UTC ↔ ET ↔ GMT/BST INTERACTIVE ROLLER

DRAG · SCROLL · SWIPE
ETUTCGMT/BST
▶◀
20:00
20:30
21:00
21:30
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22:30
23:00
23:30
00:00
00:30
01:00
01:30
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22:00
22:30
23:00
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00:00
00:30

UTC reference date: Mon, 19 Oct 2026. The roller wraps within this date.

ROLLER SELECTION

Offsets below apply to the selected time.

SELECTED TIMES
ET 00:30

Mon, 19 Oct 2026

UTC 04:30

Mon, 19 Oct 2026

GMT/BST 05:30

Mon, 19 Oct 2026

OFFSETS & DAY
SAME DAY
ET UTC -04:00
GMT/BST UTC +01:00
UTC +00:00
TIME DIFFERENCE AT SELECTED TIME

ET is 4 hours behind UTC

GMT/BST is 1 hour ahead of UTC

UTC -04:00
UTC +00:00
UTC +01:00

United States (Eastern) is 5 hours behind United Kingdom

🇺🇸 UNITED STATES (EASTERN)
12369
ET · 00:54:15
🌐 UTC
12369
UTC · 04:54:15
🇬🇧 UNITED KINGDOM
12369
GMT/BST · 05:54:15

TIME RELATIONSHIP MAP

UTCETGMT/BST
LIVE

How this time zone converter works

Pick any two countries and UTC stays in the middle as the world reference. The panels show the live local clock beside live Coordinated Universal Time, along with today's real offset. Every value comes from the IANA time zone database, so daylight saving changes are applied automatically on the day they happen.

Choose a UTC date and time between 1900 and 2100, then select Convert exact time to see the matching local times and dates. The roller is a visual shortcut that moves in 30-minute steps from your selected minute. Both use the timezone rules for the selected moment; the live clocks at the top stay on the current time.

Understanding UTC offsets and day differences

A time zone is described as an offset from UTC, such as UTC +05:30 or UTC -04:00. When adding the offset pushes the clock past midnight, the two zones sit on different calendar dates — the converter labels each selection SAME DAY, NEXT DAY or PREVIOUS DAY and shows the full local dates for the selected UTC time.

Frequently Asked Questions

What is UTC?
Coordinated Universal Time is the world's time standard, kept by atomic clocks. It never changes for daylight saving, so every other time zone is expressed as an offset from it.
How do I compare time between two countries?
Choose a first and a second country in the selectors above. Both are anchored to UTC, so the converter shows each offset and the direct difference between the two locations.
Why do time zones change during the year?
Many countries move their clocks forward in spring and back in autumn to shift daylight into the evening. Their offset from UTC therefore changes twice a year, while UTC itself stays fixed.
What does +1 day mean in a time converter?
It means the converted time falls on the next calendar date in the other zone — common when converting late-evening UTC times into Asian or Pacific clocks.