23:57 UTC is 11:57 PM on the UTC clock — 6:57 PM in New York, 11:57 PM in London, 5:27 AM in Mumbai, 8:57 AM in Tokyo. It is minute 1,438 of the 1,440 in a day, with 2 still to come before midnight UTC.
Converted for today, 2026-11-01, with daylight saving as it stands. In military and aviation time 23:57 UTC is written 2357Z, “Zulu”.
| City | Zone | 24-hour | 12-hour |
|---|---|---|---|
| Los Angeles | PST | 15:57 | 3:57 PM |
| Denver | MST | 16:57 | 4:57 PM |
| Chicago | CST | 17:57 | 5:57 PM |
| New York | EST | 18:57 | 6:57 PM |
| Toronto | EST | 18:57 | 6:57 PM |
| Mexico City | CST | 17:57 | 5:57 PM |
| São Paulo | BRT | 20:57 | 8:57 PM |
| London | GMT | 23:57 | 11:57 PM |
| Lagos | WAT | 00:57next day | 12:57 AM |
| Paris | CET | 00:57next day | 12:57 AM |
| Berlin | CET | 00:57next day | 12:57 AM |
| Rome | CET | 00:57next day | 12:57 AM |
| Istanbul | TRT | 02:57next day | 2:57 AM |
| Dubai | GST | 03:57next day | 3:57 AM |
| Karachi | PKT | 04:57next day | 4:57 AM |
| Mumbai | IST | 05:27next day | 5:27 AM |
| Jakarta | WIB | 06:57next day | 6:57 AM |
| Singapore | SGT | 07:57next day | 7:57 AM |
| Manila | PHT | 07:57next day | 7:57 AM |
| Shanghai | CST | 07:57next day | 7:57 AM |
| Seoul | KST | 08:57next day | 8:57 AM |
| Tokyo | JST | 08:57next day | 8:57 AM |
| Sydney | AEDT | 10:57next day | 10:57 AM |
| Auckland | NZDT | 12:57next day | 12:57 PM |
On the1440.com every minute of the day is sold once. Whoever buys 23:57 UTC gets the whole front page from 23:57:00 to 23:57:59: 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 23:57 UTC has gone unsold, the1440.com showed dead air. The first name here is still up for grabs.