What Time Is It Right Now?
Current date and time, updated live. Based on your device clock and time-zone settings.
Current Time in Major Cities
Live clocks updated every second for cities worldwide.
Financial Market Clocks
Local clocks for major stock exchanges. Session indicators follow regular weekday hours; holidays and special closures are not checked.
Online Time Tools
Free tools that run in your browser. No downloads or accounts needed.
Online Stopwatch
Millisecond precision with lap recording, keyboard shortcuts, and CSV export.
Countdown Timer
Visual progress ring, sound alerts, and quick presets from 5 seconds to 3 hours.
Online Alarm Clock
Multiple alarm sounds, custom labels, and snooze. Works in your browser.
Time Zone Converter
Convert between time zones worldwide with DST detection and multiple destinations.
Understanding the Current Date and Time
When you ask "what time is it?", the answer depends on where you are in the world. The Earth is divided into 24 primary time zones, each offset from Coordinated Universal Time (UTC). Your local time is determined by your geographic location and whether your region observes Daylight Saving Time (DST).
This clock reads your device's date and time. Accuracy depends on your system clock and time settings; this website does not independently synchronize with or verify an external time server.
How Time Zones Work
Time zones were standardized in the late 19th century to coordinate railway schedules and telegraph communication. Today, the IANA Time Zone Database (also called the Olson database or tz database) is the authoritative source for time zone information used by computers worldwide. It tracks not only current UTC offsets but also historical changes and Daylight Saving Time transitions for every region.
Some notable time zone facts: Nepal uses a UTC+5:45 offset (one of only a few zones not aligned to full or half hours), the International Date Line zigzags through the Pacific to keep island nations on the same calendar day, and some regions like Arizona in the United States do not observe Daylight Saving Time while the rest of the country does.
What Is UTC?
UTC stands for Coordinated Universal Time. It is the primary time standard by which the world regulates clocks. UTC does not change with seasons — there is no daylight saving adjustment. It replaced Greenwich Mean Time (GMT) as the world's standard in 1960. While GMT is a time zone, UTC is a time standard. In practice, UTC and GMT show the same time, but they are technically different concepts.
Unix Timestamps Explained
A Unix timestamp (also called Epoch time or POSIX time) counts the number of seconds since January 1, 1970, 00:00:00 UTC. This moment is known as the Unix Epoch. Developers and engineers use Unix timestamps because they provide a timezone-independent way to represent any moment in time as a single number. For example, the timestamp 1000000000 corresponds to September 9, 2001, at 01:46:40 UTC.
Frequently Asked Questions
How accurate is this clock?
This clock reads your device's date and time. Accuracy depends on your system clock and time settings; this website does not independently synchronize with or verify an external time server.
What is UTC and how does it differ from GMT?
UTC (Coordinated Universal Time) is the world's primary time standard, maintained using a network of over 400 atomic clocks worldwide. GMT (Greenwich Mean Time) is a time zone centered on the Prime Meridian in London. While they show the same time in practice, UTC is a scientifically precise standard that never observes Daylight Saving Time, whereas GMT is a historical time zone. Aviation, computing, and international communications all use UTC as their reference.
Why do some time zones have unusual offsets like UTC+5:30 or UTC+5:45?
Most time zones follow whole-hour offsets from UTC, but several countries chose offsets that better align with their solar noon. India uses UTC+5:30, Nepal uses UTC+5:45, Iran uses UTC+3:30, and the Chatham Islands use UTC+12:45. These fractional offsets were adopted so that midday on the clock roughly corresponds to when the sun is highest in the sky for that region, rather than conforming to the nearest whole hour.
Do I need to install anything to use these tools?
No. All tools — the clock, stopwatch, timer, alarm, and time zone converter — run directly in your web browser using standard web technologies like JavaScript and the Web Audio API. No downloads, installations, accounts, or plugins are required. They work on any modern browser on desktop, tablet, and mobile devices, and continue working offline once the page has loaded.
What is a Unix timestamp and why do developers use it?
A Unix timestamp counts the number of seconds elapsed since January 1, 1970, 00:00:00 UTC — a moment known as the Unix Epoch. Developers use timestamps because they represent any moment in time as a single integer that is completely independent of time zones and calendar systems. This makes them ideal for storing dates in databases, comparing events chronologically, and transmitting times across APIs where sender and receiver may be in different time zones. The current Unix timestamp increases by 1 every second.
How does Daylight Saving Time affect the time shown here?
The clock automatically reflects your local Daylight Saving Time status because it reads your device's system clock, which your operating system adjusts when DST transitions occur. In regions that observe DST, clocks spring forward one hour in spring and fall back one hour in autumn. Not all regions observe DST — most of Africa, Asia, and South America do not, and even within the US, Arizona and Hawaii skip it. The info bar shows whether DST is currently active in your timezone.