TL;DR: As I mentioned in a recent comment, regular contests should be (at most) 2 hours long and keep longer contests for special/tournament events.
Personally, one of the main reason for me to compete in less contests for the past
These are the currently scheduled Div. 1 rounds
| Name | Duration |
|---|---|
| Codeforces Round (Div. 1) | 03:00 |
| Codeforces Round (Div. 1) | 02:30 |
These are the last 10 Div. 1 (or "combined") rounds. Only one of them was 2 hours long.
| Date | Name | Duration | # of problems |
|---|---|---|---|
| 09/18 | CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) | 02:15 (was modified from 02:00 less than 24 hours before the contest) | 8 |
| 09/10 | Codeforces Round 896 (Div. 1) | 02:30 | 6 |
| 08/30 | Pinely Round 2 (Div. 1 + Div. 2) | 03:00 | 9 |
| 08/26 | Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2) | 03:00 | 9 |
| 07/29 | Codeforces Round 889 (Div. 1) | 02:30 | 6 |
| 07/23 | Codeforces Round 887 (Div. 1) | 02:30 | 6 |
| 07/11 | Codeforces Round 884 (Div. 1 + Div. 2) | 03:00 | 8 |
| 06/24 | CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!) | 03:00 | 9 |
| 06/18 | Codeforces Round 880 (Div. 1) | 02:00 | 6 |
| 05/28 | Codeforces Round 875 (Div. 1) | 02:30 | 6 |
