10:21 UTC is 10:21 AM on the UTC clock — 6:21 AM in New York, 10:21 AM in London, 3:51 PM in Mumbai, 7:21 PM in Tokyo. It is minute 622 of the 1,440 in a day, with 818 still to come before midnight UTC.
Converted for today, 2026-10-30, with daylight saving as it stands. In military and aviation time 10:21 UTC is written 1021Z, “Zulu”.
| City | Zone | 24-hour | 12-hour |
|---|---|---|---|
| Los Angeles | PDT | 03:21 | 3:21 AM |
| Denver | MDT | 04:21 | 4:21 AM |
| Chicago | CDT | 05:21 | 5:21 AM |
| New York | EDT | 06:21 | 6:21 AM |
| Toronto | EDT | 06:21 | 6:21 AM |
| Mexico City | CST | 04:21 | 4:21 AM |
| São Paulo | BRT | 07:21 | 7:21 AM |
| London | GMT | 10:21 | 10:21 AM |
| Lagos | WAT | 11:21 | 11:21 AM |
| Paris | CET | 11:21 | 11:21 AM |
| Berlin | CET | 11:21 | 11:21 AM |
| Rome | CET | 11:21 | 11:21 AM |
| Istanbul | TRT | 13:21 | 1:21 PM |
| Dubai | GST | 14:21 | 2:21 PM |
| Karachi | PKT | 15:21 | 3:21 PM |
| Mumbai | IST | 15:51 | 3:51 PM |
| Jakarta | WIB | 17:21 | 5:21 PM |
| Singapore | SGT | 18:21 | 6:21 PM |
| Manila | PHT | 18:21 | 6:21 PM |
| Shanghai | CST | 18:21 | 6:21 PM |
| Seoul | KST | 19:21 | 7:21 PM |
| Tokyo | JST | 19:21 | 7:21 PM |
| Sydney | AEDT | 21:21 | 9:21 PM |
| Auckland | NZDT | 23:21 | 11:21 PM |
On the1440.com every minute of the day is sold once. Whoever buys 10:21 UTC gets the whole front page from 10:21:00 to 10:21:59: their name in full-screen type, one line of copy and a link, with nothing else on the screen. It is a off-peak minute, so it costs $2.
Nothing yet. Every time 10:21 UTC has gone unsold, the1440.com showed dead air. The first name here is still up for grabs.