Time Zone Converter

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All other time zones are expressed as offsets from UTC, such as EST being UTC-5 or JST being UTC+9. UTC does not observe daylight saving time, making it a stable reference point for global time coordination.

DST can shift a time zone's offset by one hour during certain months. For example, EST (UTC-5) becomes EDT (UTC-4) during DST. Not all regions observe DST, so time differences between locations may change throughout the year. Our converter automatically accounts for DST based on the selected date.

EST (Eastern Standard Time) is UTC-5, used during winter months (November to March). EDT (Eastern Daylight Time) is UTC-4, used during summer months (March to November). ET (Eastern Time) is a general term that refers to whichever is currently in effect. Eastern Time encompasses both EST and EDT.

Use our Meeting Planner tab to select a time and see it displayed across multiple time zones simultaneously. Add participant zones using the "Add Participant Zone" button. The tool shows business hours overlap to help you find times that work for all participants during normal working hours (9 AM - 5 PM local time).