12:21 UTC is 12:21 PM on the UTC clock — 8:21 AM in New York, 12:21 PM in London, 5:51 PM in Mumbai, 9:21 PM in Tokyo. It is minute 742 of the 1,440 in a day, with 698 still to come before midnight UTC.
12:21 is a palindrome time: it reads the same backwards.
Converted for today, 2026-10-30, with daylight saving as it stands. In military and aviation time 12:21 UTC is written 1221Z, “Zulu”.
| City | Zone | 24-hour | 12-hour |
|---|---|---|---|
| Los Angeles | PDT | 05:21 | 5:21 AM |
| Denver | MDT | 06:21 | 6:21 AM |
| Chicago | CDT | 07:21 | 7:21 AM |
| New York | EDT | 08:21 | 8:21 AM |
| Toronto | EDT | 08:21 | 8:21 AM |
| Mexico City | CST | 06:21 | 6:21 AM |
| São Paulo | BRT | 09:21 | 9:21 AM |
| London | GMT | 12:21 | 12:21 PM |
| Lagos | WAT | 13:21 | 1:21 PM |
| Paris | CET | 13:21 | 1:21 PM |
| Berlin | CET | 13:21 | 1:21 PM |
| Rome | CET | 13:21 | 1:21 PM |
| Istanbul | TRT | 15:21 | 3:21 PM |
| Dubai | GST | 16:21 | 4:21 PM |
| Karachi | PKT | 17:21 | 5:21 PM |
| Mumbai | IST | 17:51 | 5:51 PM |
| Jakarta | WIB | 19:21 | 7:21 PM |
| Singapore | SGT | 20:21 | 8:21 PM |
| Manila | PHT | 20:21 | 8:21 PM |
| Shanghai | CST | 20:21 | 8:21 PM |
| Seoul | KST | 21:21 | 9:21 PM |
| Tokyo | JST | 21:21 | 9:21 PM |
| Sydney | AEDT | 23:21 | 11:21 PM |
| Auckland | NZDT | 01:21next day | 1:21 AM |
On the1440.com every minute of the day is sold once. Whoever buys 12:21 UTC gets the whole front page from 12:21:00 to 12:21:59: 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 12:21 UTC has gone unsold, the1440.com showed dead air. The first name here is still up for grabs.