Today's Date: ISO, UTC and Calendar Formats
Your local date and time, plus the formats you need for a message, a spreadsheet, or a line of code. Every value below updates from your device.
Your local date and time
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Your local date and time
Preparing your clock…
Copy today’s date in different formats
Local date values follow your device time zone. UTC timestamps describe the same instant everywhere.
Enable JavaScript to calculate current date formats. The explanations below are available without it.
Enable JavaScript to calculate current date formats. The explanations below are available without it.
Today in numbers and in other calendars
Where today sits in the week, month, quarter and year, plus the same day in eight other calendar systems.
Enable JavaScript to see today’s date in other calendars.
Enable JavaScript to see today’s date in other calendars.
Today’s local date vs the UTC date
Your local date changes at midnight in your device’s time zone. The UTC date changes at midnight UTC. If you are in Madrid at 00:30 during UTC+02:00, it is still 22:30 on the previous UTC date. Both readings are correct; they describe the same instant using different calendars on the clock.
When to use ISO, UTC, and ordinal dates
For an invoice date or a daily note, copy the local calendar date. For a log entry or an event shared across time zones, copy the UTC date and time. Use the ISO week when grouping weekly reports, keeping its week-year attached. For a production or inventory code, check whether the system expects YYYY-DDD or a shortened YYDDD code before copying the ordinal date.
Make a written date unambiguous
The string 04/05/2026 can mean April 5 or May 4. Write “5 May 2026” or use 2026-05-05 when you want to avoid regional conventions. A date alone does not specify a deadline’s time of day; add a local time and time zone if the cutoff matters.
Why the values change at different moments
The Unix counter increases each second. Ordinal dates and calendar dates change at local midnight. ISO week numbers change on Monday, and the ISO week-year can change before or after January 1. Astronomical Julian dates increase continuously, with integer boundaries at noon UTC in this display.
One day, many calendars
The Gregorian calendar is the civil standard almost everywhere, but it is not the only one in daily use. Religious holidays in Judaism and Islam follow lunar months, so Rosh Hashanah, Ramadan, and Eid move against the Gregorian year: Islamic dates arrive about eleven days earlier each year, while the Hebrew calendar adds a leap month seven times in nineteen years to stay near its season. Iran and Afghanistan use the Solar Hijri calendar for official business, and Ethiopia runs on a calendar of twelve 30-day months plus a short thirteenth.
Two calendars in the list keep Gregorian months and days but count years differently. Thailand numbers years in the Buddhist era, so 2026 is 2569. Japan uses imperial era names alongside the Gregorian year on official forms, and Reiwa began on May 1, 2019. When a document from one of these places shows an unexpected year, check whether it uses a different era before assuming a typo.
Calendar conversions are exact for calculated calendars. For calendars that depend on a moon sighting, the published local date can differ from the calculation by a day, so confirm the date of an observance with a local authority. For weekdays, holidays, and moon phases across a whole year, open the 2026 calendar or the 2027 calendar.