Konverter Zona Waktu

Konversi waktu antar zona waktu

Alat Developer

Cara Menggunakan Konverter Zona Waktu

  1. 1Masukkan waktu sumber dan zona waktu
  2. 2Pilih zona waktu target
  3. 3Waktu segera dikonversi

Tentang Konverter Zona Waktu

Konverter zona waktu mengonversi waktu antara zona waktu berbeda di seluruh dunia. Mendukung semua zona waktu IANA.

Fitur Utama Konverter Zona Waktu

  • Convert time between any two IANA timezones instantly
  • Full IANA timezone database — all world regions supported
  • Handles DST (Daylight Saving Time) transitions automatically
  • View the current time in any timezone as a world clock
  • Shows UTC offset for each selected timezone
  • Works entirely in-browser using the Intl API
  • One-click copy for converted time values
  • Search timezones by city name or timezone identifier

Contoh

Schedule a meeting between New York and London

Find the London equivalent of a 2 PM EST meeting time.

Input

2:00 PM America/New_York on a standard (non-DST) day

Output

7:00 PM Europe/London (UTC+0, non-DST) / 8:00 PM during UK summer (BST, UTC+1)

Find the Tokyo time for a Pacific midnight deployment

Determine when a midnight UTC deployment will appear in the Tokyo team's local time.

Input

00:00 UTC

Output

09:00 JST (Asia/Tokyo, UTC+9) — next morning in Tokyo

Kasus Penggunaan Umum

  • Scheduling global team meetings across multiple timezones without confusion
  • Determining the local time of a deployment window for on-call engineers worldwide
  • Converting API response timestamps from UTC to a user's local timezone
  • Planning international travel by checking arrival and departure times in local zones
  • Verifying cron job schedules account for the correct timezone
  • Checking when a live event, webinar, or product launch happens in different regions

Pemecahan Masalah

Converted time is off by one hour unexpectedly

Solusi

The discrepancy is likely due to DST. Daylight Saving Time shifts clocks forward or backward seasonally. The converter handles DST automatically based on the date — check if the selected date falls in a DST period.

Timezone name is not recognized

Solusi

Use IANA timezone identifiers (e.g., America/New_York, Europe/London, Asia/Tokyo). City names alone are not valid IANA identifiers. Search by city to find the correct identifier.

UTC offset shown does not match what I expected

Solusi

UTC offsets change during DST transitions. For example, America/New_York is UTC-5 in winter (EST) and UTC-4 in summer (EDT). The displayed offset reflects the actual offset for the selected date and time.

Pertanyaan yang Sering Diajukan

How many timezones are supported?

All IANA timezones are supported using the browser Intl API, covering every region worldwide. This includes all cities, countries, and territories with their historical and current UTC offsets.

Does it handle Daylight Saving Time?

Yes. DST transitions are handled automatically by the Intl API. The conversion always reflects the correct UTC offset for the selected date and time, including DST adjustments.

What is an IANA timezone?

IANA (Internet Assigned Numbers Authority) timezone identifiers are standardized names like America/New_York or Europe/London used in programming and operating systems to represent timezones with their full historical DST rules.

What is the difference between UTC and GMT?

UTC (Coordinated Universal Time) and GMT (Greenwich Mean Time) refer to the same base time for most practical purposes. UTC is the modern scientific standard; GMT is the older term still used colloquially. They differ by less than a second in practice.

Can I compare more than two timezones simultaneously?

Select multiple target timezones to see the equivalent time in each. This is useful for scheduling meetings across three or more international locations.

Why do some timezones have half-hour or quarter-hour offsets?

Some regions use non-standard offsets: India (UTC+5:30), Nepal (UTC+5:45), Iran (UTC+3:30). These are supported by the IANA database and handled correctly by the converter.

Is my data sent to a server?

No. All timezone conversion is performed locally in your browser using the JavaScript Intl.DateTimeFormat API. No data is transmitted or stored.

What is the best timezone for scheduling global meetings?

UTC is the universal reference timezone used in software and international communication. Scheduling in UTC avoids ambiguity from DST transitions and regional timezone differences.