# TIDE TABLE # Created at: 2026-01-21 21:15:11 #--------------------------------------------------------- # Created by: Danish Meteorological Institute # Station: Hals Barre # Stat. number: 20252 # Stat. owner: AalborgHavn # Country: Denmark # Data series: 11/2001 - 03/2016 : 5039 uniq days # Latitude: 56 57 N = 56.9547 # Longitude: 10 26 E = 10.4255 # Time Zone: Danish standard time [UTC +1 hour] # Reference: Mean Low Water Spring (MLWS) estimate # LAT: -27.9 cm (rel. to MSL) # MLLWS: -22.0 cm (rel. to MSL) # MLWS: -16.9 cm (rel. to MSL) # MLW: -16.1 cm (rel. to MSL) # MHW: 17.4 cm (rel. to MSL) # MHWS: 20.0 cm (rel. to MSL) # MHHWS: 24.0 cm (rel. to MSL) # HAT: 29.0 cm (rel. to MSL) # Z0: -7.9 cm (rel. to MSL) # MLWS_pugh: -18.8 cm (rel. to MSL) : Estimate based on constituents only # Form factor: 0.17 : semidiurnal tide # Parameter: Tidal height at high and low water [cm] # Data format: #--------------------------------------------------------- # Source file: HalsBarre.t.txt DATE TIME HW TIME LW TIME HW TIME LW TIME HW TIME LW ----- ---------- ---------- ---------- ---------- ---------- ---------- 270101 02:39 39 07:58 3 14:54 44 21:54 -3 270102 03:41 38 09:19 2 15:59 44 22:54 -3 270103 04:38 38 10:25 2 16:59 43 23:44 -1 270104 05:30 36 11:16 2 17:54 42 270105 00:25 0 06:17 35 11:57 2 18:43 39 270106 00:57 3 06:59 33 12:30 3 19:28 37 270107 01:19 6 07:36 32 13:00 3 20:08 34 270108 01:38 8 08:11 31 13:30 3 20:46 32 270109 01:59 8 08:45 31 14:03 4 21:23 31 270110 02:26 8 09:20 31 14:38 4 22:02 30 270111 02:59 7 10:00 32 15:18 4 22:44 30 270112 03:38 7 10:43 33 16:03 4 23:29 30 270113 04:23 6 11:31 35 16:54 3 270114 00:16 31 05:13 5 12:21 37 17:51 3 270115 01:06 33 06:09 4 13:14 39 18:55 2 270116 01:57 34 07:07 3 14:07 42 20:03 1 270117 02:48 36 08:08 1 15:01 44 21:07 0 270118 03:38 37 09:05 0 15:54 45 22:00 -1 270119 04:27 37 09:57 -1 16:46 45 22:45 -1 270120 05:13 37 10:44 -2 17:38 44 23:25 0 270121 05:57 36 11:26 -3 18:28 42 270122 00:01 0 06:38 36 12:07 -4 19:18 40 270123 00:38 0 07:20 36 12:50 -5 20:09 38 270124 01:17 0 08:07 36 13:37 -5 21:04 36 270125 02:02 0 09:02 37 14:30 -4 22:02 35 270126 02:51 1 10:04 38 15:29 -2 23:04 34 270127 03:47 2 11:11 39 16:38 0 270128 00:08 34 04:50 3 12:19 40 18:12 2 270129 01:12 34 06:03 4 13:27 42 20:45 1 270130 02:15 35 07:36 4 14:34 43 21:52 0 270131 03:15 36 09:15 2 15:38 43 22:42 -1 270201 04:11 36 10:20 0 16:38 43 23:24 0 270202 05:02 36 11:08 0 17:32 41 270203 00:00 1 05:49 35 11:47 0 18:20 39 270204 00:29 3 06:30 34 12:20 0 19:04 37 270205 00:52 5 07:08 33 12:48 2 19:43 34 270206 01:10 7 07:43 32 13:13 3 20:20 31 270207 01:29 8 08:17 31 13:38 4 20:56 29 270208 01:51 8 08:51 31 14:05 5 21:33 27 270209 02:18 8 09:29 31 14:37 5 22:13 27 270210 02:52 7 10:13 32 15:16 5 22:57 27 270211 03:33 6 11:01 33 16:04 5 23:44 28 270212 04:23 6 11:53 36 17:02 5 270213 00:35 30 05:20 5 12:48 38 18:10 4 270214 01:26 32 06:26 3 13:43 41 19:29 3 270215 02:19 34 07:37 2 14:39 44 20:44 2 270216 03:11 36 08:46 0 15:34 45 21:43 0 270217 04:01 37 09:46 -2 16:29 45 22:29 0 270218 04:50 37 10:36 -3 17:23 44 23:08 0 270219 05:37 37 11:19 -4 18:15 41 23:43 1 270220 06:21 36 11:59 -4 19:06 38 270221 00:17 1 07:05 36 12:38 -3 19:57 35 270222 00:53 1 07:53 36 13:21 -2 20:49 33 270223 01:34 1 08:48 36 14:08 0 21:45 31 270224 02:20 2 09:49 37 15:03 2 22:43 30 270225 03:13 3 10:54 37 16:09 5 23:44 30 270226 04:14 4 11:59 39 17:43 7 270227 00:44 31 05:29 5 13:05 40 20:45 5 270228 01:45 32 07:16 5 14:10 41 21:33 2 270301 02:43 34 09:03 2 15:12 41 22:14 1 270302 03:38 35 09:59 0 16:09 41 22:51 1 270303 04:28 36 10:44 -1 17:02 40 23:23 2 270304 05:14 36 11:22 -1 17:49 38 23:51 3 270305 05:56 35 11:55 0 18:31 36 270306 00:14 5 06:35 34 12:23 1 19:11 33 270307 00:34 6 07:12 33 12:47 3 19:49 30 270308 00:53 7 07:47 32 13:07 5 20:25 28 270309 01:12 8 08:23 31 13:29 6 21:02 25 270310 01:35 8 09:02 30 13:57 7 21:40 24 270311 02:05 7 09:46 31 14:34 7 22:23 24 270312 02:46 6 10:35 32 15:23 7 23:10 25 270313 03:37 5 11:28 35 16:22 7 270314 00:02 27 04:38 5 12:24 38 17:34 7 270315 00:55 30 05:51 3 13:21 41 18:58 5 270316 01:50 33 07:13 1 14:19 43 20:20 3 270317 02:45 35 08:34 0 15:18 44 21:22 2 270318 03:39 37 09:39 -3 16:16 44 22:09 1 270319 04:32 38 10:30 -4 17:12 42 22:49 2 270320 05:23 37 11:14 -3 18:07 39 23:23 3 270321 06:13 37 11:53 -2 18:59 36 23:56 3 270322 07:01 36 12:29 0 19:49 32 270323 00:29 3 07:50 35 13:07 2 20:38 29 270324 01:06 3 08:43 35 13:49 4 21:28 27 270325 01:50 3 09:39 35 14:39 7 22:21 27 270326 02:41 4 10:39 35 15:41 9 23:16 27 270327 03:42 5 11:39 36 17:08 11 270328 00:12 28 04:57 6 12:41 37 20:22 9 270329 01:09 30 06:47 5 13:41 38 20:58 6 270330 02:04 32 08:33 2 14:39 39 21:33 4 270331 02:57 34 09:27 0 15:33 39 22:06 3 270401 03:47 35 10:11 0 16:23 38 22:37 3 270402 04:33 36 10:49 0 17:09 37 23:05 3 270403 05:16 36 11:23 0 17:52 35 23:31 4 270404 05:58 35 11:52 2 18:33 32 23:54 6 270405 06:37 33 12:15 4 19:12 30 270406 00:13 7 07:16 32 12:35 6 19:49 27 270407 00:32 7 07:54 31 12:56 7 20:26 25 270408 00:54 7 08:35 30 13:23 7 21:03 23 270409 01:25 6 09:19 31 14:02 7 21:45 23 270410 02:07 5 10:10 32 14:51 8 22:33 24 270411 03:01 4 11:04 35 15:53 8 23:26 27 270412 04:06 3 12:02 38 17:05 8 270413 00:23 30 05:23 2 13:01 40 18:27 7 270414 01:21 33 06:53 1 14:02 42 19:48 5 270415 02:20 35 08:22 -1 15:04 43 20:54 3 270416 03:20 37 09:32 -3 16:05 42 21:47 3 270417 04:19 38 10:28 -3 17:04 40 22:30 3 270418 05:16 38 11:16 -1 18:00 37 23:06 4 270419 06:10 37 11:56 0 18:52 33 23:39 5 270420 07:01 36 12:31 4 19:40 30 270421 00:10 5 07:51 34 13:04 7 20:26 27 270422 00:45 5 08:40 34 13:40 9 21:10 25 270423 01:27 5 09:31 33 14:23 11 21:56 25 270424 02:16 5 10:23 33 15:18 12 22:44 26 270425 03:15 5 11:18 34 16:28 13 23:35 27 270426 04:26 6 12:13 34 18:07 12 270427 00:27 29 05:57 5 13:07 35 19:43 10 270428 01:19 31 07:39 4 14:00 36 20:27 8 270429 02:10 33 08:42 2 14:51 36 21:06 6 270430 02:59 35 09:29 1 15:39 36 21:41 5 270501 03:46 36 10:09 0 16:25 35 22:14 4 270502 04:32 36 10:45 1 17:09 34 22:44 4 270503 05:17 35 11:16 3 17:52 32 23:11 5 270504 06:00 34 11:43 4 18:33 30 23:34 6 270505 06:43 33 12:05 6 19:11 27 23:57 6 270506 07:24 32 12:29 7 19:47 25 270507 00:23 5 08:07 32 12:59 8 20:23 24 270508 00:57 4 08:54 32 13:39 8 21:04 24 270509 01:41 3 09:45 33 14:29 7 21:53 26 270510 02:37 2 10:40 35 15:30 7 22:50 28 270511 03:43 1 11:39 37 16:39 7 23:50 31 270512 05:01 1 12:41 39 17:54 7 270513 00:53 34 06:30 0 13:45 41 19:10 6 270514 01:58 36 08:07 -1 14:50 41 20:23 5 270515 03:03 38 09:29 -2 15:53 40 21:25 4 270516 04:07 39 10:34 -2 16:53 39 22:16 4 270517 05:09 39 11:30 0 17:50 36 22:59 5 270518 06:07 38 12:19 3 18:41 32 23:33 6 270519 07:00 37 12:57 7 19:28 29 270520 00:04 7 07:49 35 13:22 10 20:10 26 270521 00:37 6 08:35 33 13:46 12 20:49 25 270522 01:14 6 09:20 32 14:16 13 21:28 25 270523 02:00 5 10:06 31 14:57 13 22:09 26 270524 02:53 5 10:53 31 15:48 13 22:54 27 270525 03:54 5 11:41 32 16:45 12 23:42 29 270526 05:01 6 12:30 32 17:47 11 270527 00:31 31 06:16 5 13:19 33 18:48 9 270528 01:21 33 07:30 4 14:07 34 19:44 7 270529 02:10 34 08:31 3 14:54 34 20:34 6 270530 03:00 35 09:21 3 15:41 34 21:18 5 270531 03:49 36 10:03 3 16:27 34 21:58 4 270601 04:37 36 10:40 3 17:11 32 22:32 4 270602 05:25 36 11:12 4 17:54 31 23:03 4 270603 06:10 35 11:41 6 18:33 29 23:31 4 270604 06:55 35 12:10 6 19:09 27 270605 00:03 3 07:40 34 12:43 7 19:44 27 270606 00:40 1 08:28 34 13:23 6 20:23 27 270607 01:27 0 09:20 35 14:12 6 21:14 28 270608 02:22 0 10:17 36 15:08 6 22:15 30 270609 03:26 0 11:17 37 16:11 6 23:20 33 270610 04:39 0 12:21 38 17:19 6 270611 00:27 35 06:04 0 13:27 39 18:32 6 270612 01:37 37 07:51 0 14:32 39 19:50 5 270613 02:46 39 09:35 0 15:36 39 21:07 5 270614 03:54 40 10:46 -1 16:37 37 22:14 4 270615 04:58 41 11:46 0 17:32 35 23:06 4 270616 05:57 40 12:38 3 18:23 33 23:46 5 270617 06:51 38 13:20 6 19:08 30 270618 00:17 6 07:40 36 13:41 10 19:48 28 270619 00:44 6 08:24 33 13:49 13 20:24 26 270620 01:14 5 09:05 31 14:05 13 20:57 26 270621 01:50 5 09:44 30 14:32 13 21:33 27 270622 02:32 5 10:24 29 15:09 12 22:13 28 270623 03:19 5 11:06 29 15:53 11 22:58 29 270624 04:11 5 11:51 30 16:43 10 23:46 31 270625 05:07 6 12:37 30 17:37 9 270626 00:36 32 06:08 6 13:24 32 18:33 7 270627 01:28 34 07:13 5 14:12 33 19:30 6 270628 02:20 36 08:19 4 15:00 34 20:26 5 270629 03:11 37 09:18 4 15:48 34 21:17 3 270630 04:03 38 10:06 3 16:34 34 22:01 2 270701 04:53 39 10:47 4 17:17 33 22:40 1 270702 05:41 39 11:22 4 17:58 32 23:16 0 270703 06:29 38 11:54 5 18:35 31 23:52 0 270704 07:15 37 12:29 5 19:10 30 270705 00:31 -2 08:04 36 13:08 5 19:49 31 270706 01:17 -3 08:56 36 13:53 4 20:41 32 270707 02:09 -3 09:53 35 14:44 4 21:46 33 270708 03:08 -2 10:55 35 15:42 4 22:54 35 270709 04:15 -1 11:59 36 16:45 5 270710 00:05 37 05:35 1 13:04 36 17:56 5 270711 01:16 39 07:37 2 14:10 37 19:19 5 270712 02:27 40 09:39 0 15:13 37 20:57 4 270713 03:36 42 10:43 0 16:13 37 22:16 2 270714 04:40 42 11:36 0 17:08 36 23:10 1 270715 05:40 41 12:21 2 17:57 34 23:51 1 270716 06:34 39 12:55 5 18:41 32 270717 00:23 2 07:21 37 13:15 9 19:20 30 270718 00:47 3 08:03 34 13:26 11 19:54 29 270719 01:11 4 08:41 31 13:40 12 20:25 28 270720 01:38 4 09:16 29 14:02 11 20:58 28 270721 02:09 4 09:52 28 14:32 10 21:36 29 270722 02:45 5 10:30 28 15:09 9 22:19 30 270723 03:27 5 11:12 28 15:53 9 23:08 31 270724 04:15 6 11:57 29 16:43 8 270725 00:00 32 05:09 6 12:45 30 17:38 7 270726 00:53 35 06:12 6 13:34 32 18:39 5 270727 01:46 37 07:23 5 14:23 34 19:43 4 270728 02:40 39 08:36 4 15:12 35 20:45 1 270729 03:33 41 09:35 3 15:59 36 21:39 0 270730 04:25 42 10:22 2 16:45 36 22:25 -1 270731 05:16 42 11:02 2 17:27 35 23:06 -3 270801 06:06 41 11:37 3 18:07 35 23:44 -4 270802 06:54 39 12:12 3 18:46 34 270803 00:23 -5 07:44 37 12:49 2 19:27 35 270804 01:06 -5 08:36 36 13:31 2 20:21 35 270805 01:55 -4 09:32 35 14:19 2 21:25 36 270806 02:49 -3 10:32 34 15:13 2 22:34 37 270807 03:52 0 11:34 34 16:14 3 23:44 38 270808 05:08 2 12:38 35 17:24 4 270809 00:54 40 07:18 4 13:41 36 18:52 4 270810 02:03 41 09:23 2 14:43 36 20:46 2 270811 03:11 42 10:18 0 15:41 37 21:59 0 270812 04:14 42 11:04 0 16:35 37 22:50 -1 270813 05:13 41 11:42 2 17:24 36 23:31 -1 270814 06:04 40 12:11 5 18:07 35 270815 00:04 0 06:50 37 12:33 7 18:46 33 270816 00:31 0 07:31 34 12:50 8 19:21 32 270817 00:54 2 08:08 31 13:08 9 19:53 31 270818 01:17 3 08:43 29 13:29 9 20:27 30 270819 01:43 4 09:17 27 13:57 9 21:05 30 270820 02:13 5 09:55 27 14:30 8 21:49 30 270821 02:50 5 10:35 27 15:10 7 22:38 31 270822 03:34 5 11:20 28 15:58 7 23:29 33 270823 04:28 6 12:08 29 16:55 6 270824 00:23 35 05:31 6 12:58 32 17:59 4 270825 01:18 38 06:44 5 13:48 34 19:10 2 270826 02:13 41 08:01 3 14:38 36 20:21 0 270827 03:08 43 09:05 2 15:28 38 21:22 -3 270828 04:02 44 09:56 1 16:16 39 22:12 -5 270829 04:55 44 10:39 0 17:03 39 22:56 -6 270830 05:47 42 11:16 1 17:47 38 23:35 -6 270831 06:38 40 11:52 1 18:30 38 270901 00:14 -6 07:28 37 12:28 1 19:17 37 270902 00:55 -5 08:19 35 13:09 0 20:11 37 270903 01:40 -4 09:12 33 13:54 0 21:12 37 270904 02:31 -1 10:09 32 14:46 1 22:17 38 270905 03:30 1 11:07 33 15:46 2 23:23 39 270906 04:42 4 12:07 33 16:56 3 270907 00:30 40 06:31 6 13:07 35 18:26 3 270908 01:35 41 08:41 4 14:06 36 20:17 0 270909 02:40 42 09:34 2 15:03 37 21:28 -2 270910 03:41 42 10:16 2 15:55 38 22:17 -3 270911 04:36 41 10:52 2 16:44 38 22:58 -4 270912 05:26 39 11:22 3 17:28 37 23:33 -3 270913 06:11 37 11:48 5 18:08 36 270914 00:03 -1 06:52 34 12:11 6 18:45 35 270915 00:29 0 07:30 32 12:34 7 19:22 33 270916 00:53 2 08:07 29 12:57 7 19:59 32 270917 01:17 4 08:43 28 13:24 7 20:39 31 270918 01:45 4 09:20 27 13:55 7 21:23 31 270919 02:19 5 10:00 27 14:34 6 22:11 32 270920 03:03 5 10:44 28 15:22 5 23:03 34 270921 03:57 5 11:32 30 16:20 4 23:57 37 270922 05:01 5 12:23 32 17:28 2 270923 00:52 40 06:14 4 13:15 35 18:44 0 270924 01:49 43 07:29 2 14:08 38 20:00 -3 270925 02:45 45 08:35 1 15:01 40 21:05 -6 270926 03:42 45 09:29 0 15:53 42 21:59 -8 270927 04:38 45 10:14 0 16:44 42 22:46 -8 270928 05:33 43 10:55 0 17:34 41 23:27 -7 270929 06:24 40 11:32 0 18:23 40 270930 00:06 -5 07:14 37 12:08 0 19:13 39 271001 00:45 -3 08:03 34 12:48 0 20:05 38 271002 01:27 -1 08:53 32 13:32 0 21:02 38 271003 02:15 1 09:44 31 14:23 0 22:01 38 271004 03:10 3 10:38 32 15:21 1 23:02 39 271005 04:17 6 11:33 33 16:31 1 271006 00:03 39 05:41 7 12:29 35 17:56 1 271007 01:04 40 07:22 6 13:25 36 19:34 0 271008 02:04 40 08:30 4 14:19 38 20:46 -2 271009 03:02 40 09:17 3 15:11 39 21:38 -4 271010 03:55 40 09:57 3 16:00 39 22:21 -4 271011 04:43 38 10:32 2 16:46 39 22:59 -3 271012 05:29 37 11:04 3 17:29 38 23:32 -2 271013 06:11 35 11:33 4 18:10 37 271014 00:02 0 06:51 33 12:01 5 18:51 35 271015 00:28 2 07:30 30 12:27 5 19:32 34 271016 00:53 3 08:08 29 12:54 6 20:13 33 271017 01:21 4 08:45 27 13:25 5 20:58 33 271018 01:56 5 09:24 27 14:04 4 21:46 33 271019 02:40 5 10:08 29 14:54 3 22:37 35 271020 03:34 4 10:57 31 15:53 2 23:32 38 271021 04:37 4 11:49 34 17:03 0 271022 00:28 41 05:47 3 12:44 37 18:21 -2 271023 01:27 43 06:57 1 13:40 40 19:39 -5 271024 02:26 45 08:03 0 14:37 42 20:48 -7 271025 03:26 45 09:01 0 15:35 44 21:48 -8 271026 04:24 44 09:52 0 16:31 44 22:39 -8 271027 05:20 42 10:36 0 17:26 43 23:24 -6 271028 06:13 39 11:15 0 18:19 42 271029 00:04 -3 07:02 36 11:53 1 19:09 40 271030 00:42 0 07:49 33 12:32 1 20:00 39 271031 01:20 2 08:34 31 13:15 0 20:51 38 271101 02:03 4 09:20 31 14:05 0 21:44 37 271102 02:53 5 10:08 32 15:01 0 22:39 37 271103 03:50 6 10:58 33 16:07 0 23:35 37 271104 04:55 7 11:50 35 17:21 0 271105 00:31 38 06:05 6 12:43 37 18:43 0 271106 01:27 38 07:13 5 13:35 38 19:57 -1 271107 02:21 38 08:10 4 14:27 40 20:54 -2 271108 03:12 38 08:59 3 15:16 40 21:42 -3 271109 04:00 37 09:42 2 16:04 40 22:24 -2 271110 04:47 37 10:22 2 16:51 40 23:02 -1 271111 05:31 35 10:58 2 17:36 39 23:35 0 271112 06:14 34 11:30 3 18:20 38 271113 00:05 1 06:54 32 12:00 4 19:04 36 271114 00:33 3 07:33 30 12:29 4 19:47 35 271115 01:02 4 08:10 29 13:02 3 20:32 35 271116 01:37 4 08:49 29 13:42 2 21:20 35 271117 02:21 4 09:32 31 14:32 0 22:12 37 271118 03:13 3 10:22 33 15:31 0 23:07 38 271119 04:12 2 11:17 36 16:40 -2 271120 00:06 41 05:17 2 12:16 39 17:55 -3 271121 01:07 42 06:25 1 13:16 42 19:16 -5 271122 02:09 43 07:32 0 14:18 44 20:34 -6 271123 03:10 44 08:35 0 15:21 45 21:42 -7 271124 04:11 43 09:33 0 16:21 45 22:41 -6 271125 05:08 41 10:24 0 17:19 44 23:31 -3 271126 06:01 38 11:08 1 18:14 43 271127 00:13 0 06:49 35 11:47 1 19:05 40 271128 00:48 2 07:33 33 12:26 1 19:53 38 271129 01:20 5 08:15 31 13:07 1 20:40 37 271130 01:55 6 08:55 31 13:52 1 21:27 35 271201 02:35 7 09:38 32 14:43 1 22:16 35 271202 03:21 7 10:23 33 15:40 1 23:06 34 271203 04:13 6 11:12 35 16:42 1 23:58 35 271204 05:10 6 12:03 37 17:49 1 271205 00:49 35 06:08 5 12:54 38 18:59 0 271206 01:41 35 07:07 4 13:45 39 20:05 0 271207 02:31 36 08:03 3 14:36 40 21:01 0 271208 03:20 36 08:55 2 15:26 41 21:50 -1 271209 04:08 36 09:43 1 16:15 41 22:33 0 271210 04:54 36 10:26 1 17:04 41 23:11 0 271211 05:38 35 11:03 2 17:50 40 23:44 1 271212 06:20 33 11:37 2 18:36 38 271213 00:14 2 06:58 32 12:09 2 19:20 37 271214 00:44 3 07:36 31 12:43 1 20:06 37 271215 01:19 3 08:14 32 13:24 0 20:54 37 271216 02:00 2 08:58 33 14:13 -1 21:47 37 271217 02:49 2 09:50 35 15:10 -3 22:44 38 271218 03:45 1 10:49 38 16:15 -3 23:44 39 271219 04:46 1 11:51 40 17:29 -3 271220 00:47 40 05:52 1 12:56 43 18:53 -3 271221 01:51 41 07:02 1 14:02 45 20:27 -4 271222 02:54 41 08:14 0 15:08 46 21:48 -5 271223 03:55 41 09:23 0 16:11 46 22:52 -4 271224 04:53 40 10:23 0 17:11 45 23:43 -2 271225 05:46 38 11:13 0 18:07 43 271226 00:25 0 06:34 35 11:54 1 18:58 40 271227 00:55 4 07:17 33 12:29 2 19:44 38 271228 01:19 6 07:55 32 13:04 2 20:28 35 271229 01:43 7 08:32 32 13:41 2 21:09 33 271230 02:12 7 09:10 32 14:23 2 21:52 32 271231 02:49 7 09:51 33 15:10 2 22:37 31