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Timezone Converter

Convert times between any two time zones worldwide. Find the equivalent local time for meetings, calls or travel across different countries and time zones.

Last reviewed: 14 January 2026Source: ONS — Living Costs and Food Survey
Timezone Converter · USMiscellaneous

{hour}

00 UTC+0.00 = 9.00:00 UTC-5.00

Rates & sources

Indicative UK averages drawn from ONS Living Costs and Food Survey, plus trade body data.

Source: ONS — Living Costs and Food Survey — figures refreshed at the start of each tax year.

When to use this calculator

  • When you need a fast estimate before making a bigger decision.
  • When you want to compare a few scenarios using the same assumptions.
  • When you need a clearer starting point before using a detailed quote or formal document.
  • When you want to sanity-check a figure you have seen elsewhere before you rely on it.
  • When you are preparing for a conversation with an adviser, supplier, or lender and want to arrive with realistic numbers.

A realistic US planning example

Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.

Hour (0—23)

40 hours

Your UTC Offset (e.g. 0 for GMT)

0

Target UTC Offset (e.g. -5 for EST)

-5

After entering these figures, focus on {hour} first and then rerun the tool with a more cautious assumption to understand the realistic range of outcomes rather than relying on a single estimate.

How to read your results

{hour}

Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.

Method & assumptionsAuthoritative sources

This converter allows you to translate a specific date and time from one time zone to another, accounting for current UTC offsets and, where applicable, daylight saving time rules. Time zone data is based on the IANA Time Zone Database, which is the global standard used by operating systems and programming languages. The tool applies the rules that are in force on the date you select, so it will correctly handle periods before or after a daylight saving transition. It does not account for historical time zone changes that predate the IANA database's coverage, which may matter for research into dates before the mid-twentieth century. For forward scheduling across months, verify that the daylight saving status shown reflects the transition dates for the relevant year.

Common mistakes

  • !Using optimistic assumptions without testing a more cautious scenario as well.
  • !Comparing outputs from different tools without checking that the inputs match.
  • !Treating the result as a final quote instead of a planning estimate.
  • !Rounding inputs too aggressively, which can produce an output that is noticeably different from your actual situation.
  • !Stopping at a single run of the tool rather than adjusting the key variable up and down to understand the range of plausible outcomes.

What to do next

  • Try at least one more scenario so you can compare a realistic range instead of a single estimate.
  • Use the related calculators below to cross-check the decision from another angle.
  • Open one of the linked guides if you need more context before you act on the result.
  • Write down the key outputs from your best two or three scenarios so you have something concrete to compare when you make the final decision.
  • If the result surprises you, change one input at a time to isolate which variable is driving the outcome before drawing conclusions.

Frequently asked

The UK uses Greenwich Mean Time (GMT / UTC+0) in winter and British Summer Time (BST / UTC+1) from the last Sunday of March to the last Sunday of October. Despite a 2019 EU vote to end seasonal clock changes, the UK continues both GMT and BST under the Summer Time Order 2002.

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