Timezone Knowledge & Reference Guides
Understand how time zones work around the world.
- EST vs GMT: Time Difference and ConversionEastern Standard Time (EST) is 5 hours behind Greenwich Mean Time (GMT). Learn how to convert between EST and GMT, how DST creates a 4-hour gap in summer, and the best scheduling windows for US East Coast and UK teams.
- Working Hours in Sydney: A Timezone GuideSydney uses AEST (UTC+10) in winter and AEDT (UTC+11) in summer. This guide covers Australian business hours, the southern hemisphere DST calendar, and scheduling windows with Asia, Europe, and the Americas.
- CST vs MST: Time Difference and ConversionCentral Standard Time (CST) is 1 hour ahead of Mountain Standard Time (MST). Learn how to convert between CST and MST and understand the border states where both zones meet.
- Working Hours in Dubai: A Timezone GuideDubai operates on Gulf Standard Time (GST, UTC+4) year-round with no daylight saving time. This guide covers UAE business hours, the Monday–Friday work week, and scheduling windows with Europe, Asia, and the Americas.
- PST vs MST: Time Difference and ConversionPacific Standard Time (PST) is 1 hour behind Mountain Standard Time (MST). Learn how to convert between PST and MST, and why Arizona creates a seasonal exception for this 1-hour gap.
- Working Hours in Singapore: A Timezone GuideSingapore operates on Singapore Standard Time (SGT, UTC+8) year-round with no daylight saving time. This guide covers business hours, meeting culture, and scheduling windows with Europe and the Americas.
- PST vs CST: Time Difference and ConversionPacific Standard Time (PST) is 2 hours behind Central Standard Time (CST). Learn how to convert between PST and CST and find the best scheduling windows for West Coast and Midwest teams.
- Working Hours in Tokyo: A Timezone GuideTokyo operates on Japan Standard Time (JST, UTC+9) year-round with no daylight saving time. This guide covers Japanese business hours, meeting etiquette, and scheduling windows with the Americas and Europe.
- EST vs MST: Time Difference and ConversionEastern Standard Time (EST) is 2 hours ahead of Mountain Standard Time (MST). Learn how to convert between EST and MST, and why the Arizona exception matters for scheduling.
- Working Hours in London: A Timezone GuideLondon uses GMT in winter and BST (UTC+1) in summer. This guide covers business hours, lunch culture, and the best scheduling windows between London and cities in North America, Europe, and Asia.
- EST vs CST: Time Difference and ConversionEastern Standard Time (EST) is 1 hour ahead of Central Standard Time (CST). Learn how to convert between EST and CST, when each zone observes daylight saving time, and how to find the best meeting windows.
- Working Hours in New York: A Timezone GuideNew York operates on Eastern Time (UTC−5 in winter, UTC−4 in summer). This guide covers business hours, meeting windows, and how to schedule with New York from cities around the world.
- EST vs PST: Time Difference and ConversionEastern Standard Time (EST) is 3 hours ahead of Pacific Standard Time (PST). Learn how to convert between EST and PST, how DST affects the gap, and when the two coasts overlap.