21:21 UTC is 9:21 PM on the UTC clock — 5:21 PM in New York, 9:21 PM in London, 2:51 AM in Mumbai, 6:21 AM in Tokyo. It is minute 1,282 of the 1,440 in a day, with 158 still to come before midnight UTC.
21:21 is a mirror time: the hour and the minute show the same number.
Converted for today, 2026-10-29, with daylight saving as it stands. In military and aviation time 21:21 UTC is written 2121Z, “Zulu”.
| City | Zone | 24-hour | 12-hour |
|---|---|---|---|
| Los Angeles | PDT | 14:21 | 2:21 PM |
| Denver | MDT | 15:21 | 3:21 PM |
| Chicago | CDT | 16:21 | 4:21 PM |
| New York | EDT | 17:21 | 5:21 PM |
| Toronto | EDT | 17:21 | 5:21 PM |
| Mexico City | CST | 15:21 | 3:21 PM |
| São Paulo | BRT | 18:21 | 6:21 PM |
| London | GMT | 21:21 | 9:21 PM |
| Lagos | WAT | 22:21 | 10:21 PM |
| Paris | CET | 22:21 | 10:21 PM |
| Berlin | CET | 22:21 | 10:21 PM |
| Rome | CET | 22:21 | 10:21 PM |
| Istanbul | TRT | 00:21next day | 12:21 AM |
| Dubai | GST | 01:21next day | 1:21 AM |
| Karachi | PKT | 02:21next day | 2:21 AM |
| Mumbai | IST | 02:51next day | 2:51 AM |
| Jakarta | WIB | 04:21next day | 4:21 AM |
| Singapore | SGT | 05:21next day | 5:21 AM |
| Manila | PHT | 05:21next day | 5:21 AM |
| Shanghai | CST | 05:21next day | 5:21 AM |
| Seoul | KST | 06:21next day | 6:21 AM |
| Tokyo | JST | 06:21next day | 6:21 AM |
| Sydney | AEDT | 08:21next day | 8:21 AM |
| Auckland | NZDT | 10:21next day | 10:21 AM |
On the1440.com every minute of the day is sold once. Whoever buys 21:21 UTC gets the whole front page from 21:21:00 to 21:21:59: their name in full-screen type, one line of copy and a link, with nothing else on the screen. It is a peak minute, so it costs $3.
Nothing yet. Every time 21:21 UTC has gone unsold, the1440.com showed dead air. The first name here is still up for grabs.