BT to GMT Converter

Use our converter below to change times between British Time (BT) to Greenwich Mean Time (GMT). If you mixed up your time zones and would like to convert GMT to BT instead, you can find that converter here: Greenwich Mean Time to British Time Converter. And if you don't like either of our tools, then go back to see all of our time zone converters.

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British Time

British Time (BT) is the time zone used in the United Kingdom, including cities like London and Manchester. It is the same as Greenwich Mean Time (GMT) during standard time and 1 hour ahead during daylight saving time, known as British Summer Time (BST).

Greenwich Mean Time

Greenwich Mean Time (GMT) is the time zone used as the basis for calculating time differences worldwide. It is the same as Coordinated Universal Time (UTC) and has no associated cities, as it serves as a reference point for all other time zones.

How to convert time from British Time (BT) to Greenwich Mean Time (GMT)

Converting between British Time (BT) and Greenwich Mean Time (GMT) could be challenging. As companies become more global, we find ourselves in a mess of calendar invites. Time changes from BT cities like London, Birmingham, Manchester, Glasgow are -2 hour(s) apart to GMT cities like , holiday schedules, and the basic communication becomes a juggling act. To make it easier to understand, we'll break down the process of converting time between BT and GMT into step-by-step instructions.

Step 1: Understanding British Time and Greenwich Mean Time

British Time is UTC1, which means that the local time in the British Time zone is 1 hours apart from UTC. Greenwich Mean Time is UTC0, which means that the local time in the Greenwich Mean Time zone is 0 hours apart from UTC.

Step 2: Calculate the Time Difference

To convert time from British Time to Greenwich Mean Time, we first need to find the time difference between both time zones. Since British Time is UTC1 and Greenwich Mean Time is UTC0, the time difference is: -2 hour(s)

-2 hours = British Time's difference from UTC 0 + (Greenwich Mean Time's difference from UTC 1
Greenwich Mean Time has -2 hour(s) difference British Time.

Understanding British Time and Greenwich Mean Time

Step 4: Practice Converting Times

Now that you know the process, try converting different times from British Time to Greenwich Mean Time for practice before going to the answer page. Remember to always add the Greenwich Mean Time time difference to the British Time time.

Morning hours from BT to GMT

Afternoon hours BT to GMT

Scheduling a meeting between British Time and Greenwich Mean Time

When scheduling a meeting between employees in the British Time and Greenwich Mean Time zones, there are several factors to consider to ensure that the meeting is convenient and productive for all participants. Here's a detailed breakdown of what you should consider before scheduling across time zones:

Convert Time Difference: As we've discussed earlier, Greenwich Mean Time is -2 ahead of British Time. It's crucial to take this time difference into account when scheduling a meeting to avoid scheduling conflicts or creating meetings at odd or inappropriate hours. In my experience, accidentally scheduling a meeting a 4am is awkward.
Overlapping Working Hours: To find a suitable time for the meeting, you’ll need to identify the overlapping working hours between the two time zones. For example, if employees in both zones work from 9:00 AM to 5:00 PM local time, the overlapping hours could be between 9:00 AM and 11:00 AM British Time but -2 hours different to Greenwich Mean Time. Be upfront with Greenwich Mean Time employees to find the right time.
Consideration of Local Holidays: Be mindful of local British Time and Greenwich Mean Time holidays, festivals, or observances in both time zones. These events might affect employee availability or working hours. Check local calendars for both the British Time and Greenwich Mean Time zones to avoid scheduling conflicts.
Communicate Time Zone Differences: Clearly communicate the meeting time in both British Time and Greenwich Mean Time to avoid confusion. Using a tool like an online meeting planner or time zone converter can help simplify the process and ensure accuracy.

Converting time zones across other countries

The process of converting time between two time zones is similar regardless of the countries involved. You'll need to determine the time difference between the two zones and add it to the time in the first zone. Keep in mind that some countries may observe daylight saving time or have different time zones within the country. It's important to double-check the time difference before scheduling any meetings or events.

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