WhatTimeIsIt.zone

Sunrise and sunset in Ulsteinvik, Norway in 2026

Today, Wednesday, 4 November, the sun rises at 08:18 and sets at 16:20: the day is 8 h 2 min long (5 min 47 s shorter than yesterday).

Current time in Ulsteinvik

Daylight in 2026

Longest day
21 June19 h 55 min · 03:40–23:36
Shortest day
21 December5 h · 10:04–15:04
Earliest sunrise
20 June03:40
Latest sunrise
26 December10:05
Earliest sunset
17 December15:03
Latest sunset
22 June23:36

Day and night through the year

0006121824JanFebMarAprMayJunJulAugSepOctNovDec
  • Day
  • Civil twilight
  • Nautical
  • Astronomical
  • Night
Daylight, twilight and night in 2026, local time. Times from 29 March to 25 October are in daylight saving time.

Sunrise and sunset for every day

January
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Th10:0315:175:13+2:1808:57–16:22
2 Fr10:0215:185:16+2:2908:57–16:24
3 Sa10:0115:205:18+2:4108:56–16:25
4 Su10:0015:225:21+2:5308:56–16:27
5 Mo09:5915:245:24+3:0208:55–16:28
6 Tu09:5815:265:27+3:1408:54–16:30
7 We09:5715:285:31+3:2308:53–16:32
8 Th09:5615:305:34+3:3308:52–16:33
9 Fr09:5415:335:38+3:4308:51–16:35
10 Sa09:5315:355:42+3:5108:50–16:37
11 Su09:5115:375:46+3:5908:49–16:39
12 Mo09:4915:405:50+4:0808:48–16:41
13 Tu09:4815:425:54+4:1508:47–16:43
14 We09:4615:455:59+4:2208:45–16:45
15 Th09:4415:486:03+4:3008:44–16:47
16 Fr09:4215:506:08+4:3508:42–16:49
17 Sa09:4015:536:12+4:4208:41–16:52
18 Su09:3815:566:17+4:4808:39–16:54
19 Mo09:3615:586:22+4:5408:38–16:56
20 Tu09:3416:016:27+4:5908:36–16:58
21 We09:3116:046:32+5:0308:34–17:01
22 Th09:2916:076:37+5:0808:32–17:03
23 Fr09:2716:106:43+5:1208:30–17:05
24 Sa09:2416:136:48+5:1608:28–17:08
25 Su09:2216:166:53+5:2108:26–17:10
26 Mo09:2016:196:59+5:2308:24–17:13
27 Tu09:1716:217:04+5:2708:22–17:15
28 We09:1416:247:09+5:3008:20–17:18
29 Th09:1216:277:15+5:3308:18–17:20
30 Fr09:0916:307:21+5:3608:16–17:23
31 Sa09:0716:337:26+5:3808:14–17:25
February
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Su09:0416:367:32+5:4008:11–17:28
2 Mo09:0116:397:38+5:4208:09–17:31
3 Tu08:5816:427:43+5:4508:07–17:33
4 We08:5616:457:49+5:4608:04–17:36
5 Th08:5316:487:55+5:4908:02–17:39
6 Fr08:5016:518:01+5:4907:59–17:41
7 Sa08:4716:548:07+5:5107:57–17:44
8 Su08:4416:578:12+5:5207:54–17:46
9 Mo08:4117:008:18+5:5307:51–17:49
10 Tu08:3817:038:24+5:5507:49–17:52
11 We08:3617:068:30+5:5507:46–17:54
12 Th08:3317:098:36+5:5607:43–17:57
13 Fr08:3017:128:42+5:5807:41–18:00
14 Sa08:2717:158:48+5:5707:38–18:03
15 Su08:2417:188:54+5:5907:35–18:05
16 Mo08:2017:219:00+5:5907:32–18:08
17 Tu08:1717:249:06+6:0007:30–18:11
18 We08:1417:279:12+5:5907:27–18:13
19 Th08:1117:309:18+6:0107:24–18:16
20 Fr08:0817:339:24+6:0107:21–18:19
21 Sa08:0517:369:30+6:0107:18–18:21
22 Su08:0217:389:36+6:0107:15–18:24
23 Mo07:5917:419:42+6:0107:12–18:27
24 Tu07:5617:449:48+6:0207:09–18:30
25 We07:5217:479:54+6:0207:06–18:32
26 Th07:4917:5010:00+6:0207:03–18:35
27 Fr07:4617:5310:06+6:0207:00–18:38
28 Sa07:4317:5610:12+6:0206:57–18:40
March
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Su07:4017:5810:18+6:0206:54–18:43
2 Mo07:3618:0110:24+6:0306:51–18:46
3 Tu07:3318:0410:30+6:0206:48–18:48
4 We07:3018:0710:36+6:0206:44–18:51
5 Th07:2718:1010:42+6:0206:41–18:54
6 Fr07:2418:1310:48+6:0306:38–18:57
7 Sa07:2018:1510:55+6:0206:35–18:59
8 Su07:1718:1811:01+6:0306:32–19:02
9 Mo07:1418:2111:07+6:0206:28–19:05
10 Tu07:1018:2411:13+6:0306:25–19:08
11 We07:0718:2611:19+6:0206:22–19:10
12 Th07:0418:2911:25+6:0206:19–19:13
13 Fr07:0118:3211:31+6:0206:15–19:16
14 Sa06:5718:3511:37+6:0206:12–19:19
15 Su06:5418:3711:43+6:0206:09–19:21
16 Mo06:5118:4011:49+6:0206:05–19:24
17 Tu06:4718:4311:55+6:0206:02–19:27
18 We06:4418:4612:01+6:0205:59–19:30
19 Th06:4118:4812:07+6:0205:55–19:32
20 Fr06:3818:5112:13+6:0305:52–19:35
21 Sa06:3418:5412:19+6:0105:48–19:38
22 Su06:3118:5712:25+6:0305:45–19:41
23 Mo06:2818:5912:31+6:0105:42–19:44
24 Tu06:2419:0212:37+6:0305:38–19:47
25 We06:2119:0512:43+6:0205:35–19:49
26 Th06:1819:0712:49+6:0105:31–19:52
27 Fr06:1419:1012:55+6:0205:28–19:55
28 Sa06:1119:1313:01+6:0305:24–19:58
29 Su07:0820:1613:07+6:0206:21–21:01
30 Mo07:0420:1813:13+6:0206:17–21:04
31 Tu07:0120:2113:19+6:0206:14–21:07
April
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 We06:5820:2413:25+6:0206:10–21:10
2 Th06:5520:2613:31+6:0306:07–21:13
3 Fr06:5120:2913:37+6:0206:03–21:16
4 Sa06:4820:3213:44+6:0206:00–21:18
5 Su06:4520:3513:50+6:0305:56–21:21
6 Mo06:4120:3713:56+6:0205:53–21:24
7 Tu06:3820:4014:02+6:0305:49–21:28
8 We06:3520:4314:08+6:0305:45–21:31
9 Th06:3120:4614:14+6:0205:42–21:34
10 Fr06:2820:4814:20+6:0305:38–21:37
11 Sa06:2520:5114:26+6:0305:34–21:40
12 Su06:2220:5414:32+6:0205:31–21:43
13 Mo06:1820:5714:38+6:0305:27–21:46
14 Tu06:1521:0014:44+6:0205:23–21:49
15 We06:1221:0214:50+6:0205:20–21:53
16 Th06:0921:0514:56+6:0405:16–21:56
17 Fr06:0521:0815:02+6:0205:12–21:59
18 Sa06:0221:1115:08+6:0205:09–22:02
19 Su05:5921:1415:14+6:0205:05–22:06
20 Mo05:5621:1615:20+6:0205:01–22:09
21 Tu05:5221:1915:26+6:0204:57–22:12
22 We05:4921:2215:32+6:0104:54–22:16
23 Th05:4621:2515:38+6:0204:50–22:19
24 Fr05:4321:2815:44+6:0104:46–22:23
25 Sa05:4021:3015:50+6:0004:42–22:26
26 Su05:3721:3315:56+6:0004:38–22:30
27 Mo05:3321:3616:02+6:0004:34–22:33
28 Tu05:3021:3916:08+5:5904:30–22:37
29 We05:2721:4216:14+5:5804:27–22:40
30 Th05:2421:4516:20+5:5804:23–22:44
May
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Fr05:2121:4816:26+5:5704:19–22:48
2 Sa05:1821:5016:32+5:5604:15–22:51
3 Su05:1521:5316:38+5:5504:11–22:55
4 Mo05:1221:5616:44+5:5404:07–22:59
5 Tu05:0921:5916:50+5:5404:03–23:03
6 We05:0622:0216:56+5:5103:59–23:07
7 Th05:0322:0517:01+5:5003:54–23:11
8 Fr05:0022:0817:07+5:4903:50–23:15
9 Sa04:5722:1017:13+5:4703:46–23:19
10 Su04:5422:1317:19+5:4603:42–23:23
11 Mo04:5122:1617:25+5:4403:37–23:28
12 Tu04:4822:1917:30+5:4103:33–23:32
13 We04:4522:2217:36+5:3903:29–23:36
14 Th04:4222:2517:42+5:3703:24–23:41
15 Fr04:4022:2717:47+5:3503:20–23:45
16 Sa04:3722:3017:53+5:3203:15–23:50
17 Su04:3422:3317:58+5:2703:10–23:55
18 Mo04:3222:3618:04+5:2603:05–00:00
19 Tu04:2922:3818:09+5:2203:00–00:05
20 We04:2622:4118:14+5:1802:55–00:10
21 Th04:2422:4418:19+5:1402:50–00:15
22 Fr04:2122:4618:25+5:1002:44–00:21
23 Sa04:1922:4918:30+5:0502:39–00:27
24 Su04:1622:5218:35+5:0002:32–00:33
25 Mo04:1422:5418:40+4:5502:26–00:40
26 Tu04:1222:5718:44+4:5002:18–00:48
27 We04:0922:5918:49+4:4302:10–00:57
28 Th04:0723:0118:54+4:3801:59–01:08
29 Fr04:0523:0418:58+4:31all night
30 Sa04:0323:0619:03+4:23all night
31 Su04:0123:0819:07+4:17all night
June
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Mo03:5923:1119:11+4:09all night
2 Tu03:5723:1319:15+4:00all night
3 We03:5523:1519:19+3:52all night
4 Th03:5423:1719:23+3:41all night
5 Fr03:5223:1919:26+3:34all night
6 Sa03:5023:2119:30+3:23all night
7 Su03:4923:2219:33+3:12all night
8 Mo03:4823:2419:36+3:01all night
9 Tu03:4623:2619:39+2:50all night
10 We03:4523:2719:41+2:37all night
11 Th03:4423:2819:44+2:26all night
12 Fr03:4323:3019:46+2:13all night
13 Sa03:4223:3119:48+2:00all night
14 Su03:4223:3219:50+1:46all night
15 Mo03:4123:3319:51+1:33all night
16 Tu03:4123:3419:53+1:18all night
17 We03:4023:3419:54+1:04all night
18 Th03:4023:3519:54+0:50all night
19 Fr03:4023:3519:55+0:35all night
20 Sa03:4023:3619:55+0:21all night
21 Su03:4023:3619:55+0:05all night
22 Mo03:4023:3619:55−0:09all night
23 Tu03:4123:3619:55−0:26all night
24 We03:4123:3619:54−0:38all night
25 Th03:4223:3619:53−0:54all night
26 Fr03:4223:3519:52−1:08all night
27 Sa03:4323:3519:51−1:22all night
28 Su03:4423:3419:49−1:37all night
29 Mo03:4523:3319:47−1:49all night
30 Tu03:4623:3219:45−2:04all night
July
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 We03:4823:3119:43−2:15all night
2 Th03:4923:3019:41−2:29all night
3 Fr03:5123:2919:38−2:40all night
4 Sa03:5223:2819:35−2:53all night
5 Su03:5423:2619:32−3:03all night
6 Mo03:5623:2519:29−3:14all night
7 Tu03:5723:2319:25−3:24all night
8 We03:5923:2219:22−3:35all night
9 Th04:0123:2019:18−3:44all night
10 Fr04:0323:1819:14−3:52all night
11 Sa04:0523:1619:10−4:01all night
12 Su04:0823:1419:06−4:09all night
13 Mo04:1023:1219:02−4:16all night
14 Tu04:1223:1018:57−4:2501:53–01:31
15 We04:1523:0818:53−4:3002:10–01:14
16 Th04:1723:0618:48−4:3702:21–01:04
17 Fr04:1923:0318:44−4:4302:29–00:56
18 Sa04:2223:0118:39−4:4902:36–00:48
19 Su04:2422:5918:34−4:5402:43–00:42
20 Mo04:2722:5618:29−4:5902:49–00:36
21 Tu04:2922:5418:24−5:0402:55–00:30
22 We04:3222:5118:19−5:0803:01–00:24
23 Th04:3522:4918:13−5:1203:06–00:19
24 Fr04:3722:4618:08−5:1603:11–00:14
25 Sa04:4022:4318:03−5:1903:16–00:09
26 Su04:4322:4117:57−5:2403:21–00:04
27 Mo04:4522:3817:52−5:2603:26–00:00
28 Tu04:4822:3517:47−5:2803:30–23:55
29 We04:5122:3217:41−5:3203:35–23:50
30 Th04:5422:3017:35−5:3403:39–23:46
31 Fr04:5622:2717:30−5:3603:43–23:42
August
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Sa04:5922:2417:24−5:3803:48–23:37
2 Su05:0222:2117:19−5:4103:52–23:33
3 Mo05:0522:1817:13−5:4203:56–23:29
4 Tu05:0722:1517:07−5:4304:00–23:24
5 We05:1022:1217:01−5:4604:04–23:20
6 Th05:1322:0916:56−5:4704:08–23:16
7 Fr05:1622:0616:50−5:4804:12–23:12
8 Sa05:1922:0316:44−5:4904:16–23:08
9 Su05:2122:0016:38−5:5004:19–23:04
10 Mo05:2421:5716:32−5:5104:23–23:00
11 Tu05:2721:5416:26−5:5104:27–22:56
12 We05:3021:5116:21−5:5304:30–22:52
13 Th05:3221:4816:15−5:5304:34–22:48
14 Fr05:3521:4416:09−5:5504:37–22:44
15 Sa05:3821:4116:03−5:5504:41–22:40
16 Su05:4121:3815:57−5:5404:44–22:36
17 Mo05:4321:3515:51−5:5604:48–22:33
18 Tu05:4621:3215:45−5:5604:51–22:29
19 We05:4921:2915:39−5:5604:55–22:25
20 Th05:5221:2515:33−5:5704:58–22:21
21 Fr05:5421:2215:27−5:5705:01–22:17
22 Sa05:5721:1915:21−5:5605:04–22:14
23 Su06:0021:1615:15−5:5805:08–22:10
24 Mo06:0321:1215:09−5:5705:11–22:06
25 Tu06:0521:0915:03−5:5605:14–22:02
26 We06:0821:0614:57−5:5805:17–21:59
27 Th06:1121:0314:52−5:5705:20–21:55
28 Fr06:1320:5914:46−5:5805:24–21:51
29 Sa06:1620:5614:40−5:5705:27–21:47
30 Su06:1920:5314:34−5:5805:30–21:44
31 Mo06:2120:5014:28−5:5705:33–21:40
September
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Tu06:2420:4614:22−5:5805:36–21:37
2 We06:2720:4314:16−5:5605:39–21:33
3 Th06:2920:4014:10−5:5805:42–21:29
4 Fr06:3220:3614:04−5:5705:45–21:26
5 Sa06:3520:3313:58−5:5705:48–21:22
6 Su06:3720:3013:52−5:5805:51–21:18
7 Mo06:4020:2713:46−5:5705:53–21:15
8 Tu06:4320:2313:40−5:5705:56–21:11
9 We06:4520:2013:34−5:5705:59–21:08
10 Th06:4820:1713:28−5:5706:02–21:04
11 Fr06:5120:1313:22−5:5706:05–21:01
12 Sa06:5320:1013:16−5:5606:08–20:57
13 Su06:5620:0713:10−5:5706:10–20:54
14 Mo06:5820:0313:04−5:5606:13–20:50
15 Tu07:0120:0012:58−5:5806:16–20:47
16 We07:0419:5712:52−5:5606:19–20:43
17 Th07:0619:5312:47−5:5606:22–20:40
18 Fr07:0919:5012:41−5:5706:24–20:36
19 Sa07:1219:4712:35−5:5606:27–20:33
20 Su07:1419:4312:29−5:5706:30–20:29
21 Mo07:1719:4012:23−5:5606:32–20:26
22 Tu07:1919:3712:17−5:5606:35–20:22
23 We07:2219:3312:11−5:5706:38–20:19
24 Th07:2519:3012:05−5:5606:41–20:16
25 Fr07:2719:2711:59−5:5706:43–20:12
26 Sa07:3019:2411:53−5:5606:46–20:09
27 Su07:3319:2011:47−5:5706:49–20:06
28 Mo07:3519:1711:41−5:5606:51–20:02
29 Tu07:3819:1411:35−5:5706:54–19:59
30 We07:4119:1011:29−5:5706:57–19:56
October
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Th07:4319:0711:23−5:5606:59–19:52
2 Fr07:4619:0411:17−5:5707:02–19:49
3 Sa07:4819:0011:11−5:5707:04–19:46
4 Su07:5118:5711:06−5:5607:07–19:43
5 Mo07:5418:5411:00−5:5707:10–19:39
6 Tu07:5618:5110:54−5:5707:12–19:36
7 We07:5918:4710:48−5:5607:15–19:33
8 Th08:0218:4410:42−5:5807:18–19:30
9 Fr08:0518:4110:36−5:5707:20–19:26
10 Sa08:0718:3810:30−5:5707:23–19:23
11 Su08:1018:3410:24−5:5707:26–19:20
12 Mo08:1318:3110:18−5:5607:28–19:17
13 Tu08:1518:2810:12−5:5707:31–19:14
14 We08:1818:2510:06−5:5807:33–19:11
15 Th08:2118:2210:00−5:5707:36–19:08
16 Fr08:2418:189:54−5:5707:39–19:05
17 Sa08:2618:159:48−5:5607:41–19:02
18 Su08:2918:129:42−5:5707:44–18:59
19 Mo08:3218:099:36−5:5707:46–18:56
20 Tu08:3518:069:30−5:5607:49–18:53
21 We08:3818:039:24−5:5607:52–18:50
22 Th08:4017:599:18−5:5607:54–18:47
23 Fr08:4317:569:13−5:5507:57–18:44
24 Sa08:4617:539:07−5:5607:59–18:41
25 Su07:4916:509:01−5:5507:02–17:38
26 Mo07:5216:478:55−5:5407:05–17:35
27 Tu07:5516:448:49−5:5407:07–17:33
28 We07:5816:418:43−5:5307:10–17:30
29 Th08:0016:388:37−5:5307:13–17:27
30 Fr08:0316:358:31−5:5207:15–17:24
31 Sa08:0616:328:25−5:5107:18–17:22
November
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Su08:0916:298:20−5:5107:20–17:19
2 Mo08:1216:268:14−5:5007:23–17:16
3 Tu08:1516:238:08−5:4807:25–17:14
4 We08:1816:208:02−5:4707:28–17:11
5 Th08:2116:187:56−5:4507:31–17:09
6 Fr08:2416:157:51−5:4507:33–17:06
7 Sa08:2716:127:45−5:4307:36–17:04
8 Su08:2916:097:39−5:4107:38–17:01
9 Mo08:3216:067:34−5:4007:41–16:59
10 Tu08:3516:047:28−5:3707:43–16:57
11 We08:3816:017:22−5:3607:46–16:54
12 Th08:4115:587:17−5:3307:48–16:52
13 Fr08:4415:567:11−5:3007:51–16:50
14 Sa08:4715:537:06−5:2807:53–16:48
15 Su08:5015:517:00−5:2607:56–16:46
16 Mo08:5315:486:55−5:2107:58–16:44
17 Tu08:5615:466:50−5:1808:01–16:42
18 We08:5815:436:45−5:1608:03–16:40
19 Th09:0115:416:39−5:1108:05–16:38
20 Fr09:0415:396:34−5:0808:08–16:36
21 Sa09:0715:366:29−5:0208:10–16:34
22 Su09:1015:346:24−4:5808:12–16:32
23 Mo09:1215:326:19−4:5408:14–16:31
24 Tu09:1515:306:15−4:4808:17–16:29
25 We09:1815:286:10−4:4308:19–16:27
26 Th09:2015:266:05−4:3608:21–16:26
27 Fr09:2315:246:01−4:3108:23–16:24
28 Sa09:2515:225:56−4:2408:25–16:23
29 Su09:2815:205:52−4:1708:27–16:22
30 Mo09:3015:195:48−4:0908:29–16:20
December
DateSunriseSunsetDay (h:mm)Change (m:ss)Dawn and dusk
1 Tu09:3315:175:44−4:0108:31–16:19
2 We09:3515:155:40−3:5408:33–16:18
3 Th09:3715:145:36−3:4608:35–16:17
4 Fr09:4015:135:33−3:3608:36–16:16
5 Sa09:4215:115:29−3:2808:38–16:15
6 Su09:4415:105:26−3:1708:40–16:14
7 Mo09:4615:095:23−3:0708:41–16:14
8 Tu09:4815:085:20−2:5808:43–16:13
9 We09:5015:075:17−2:4508:44–16:12
10 Th09:5115:065:14−2:3508:46–16:12
11 Fr09:5315:055:12−2:2408:47–16:11
12 Sa09:5515:055:10−2:1108:48–16:11
13 Su09:5615:045:08−1:5908:50–16:11
14 Mo09:5715:045:06−1:4608:51–16:11
15 Tu09:5915:045:04−1:3508:52–16:11
16 We10:0015:035:03−1:2008:53–16:11
17 Th10:0115:035:02−1:0708:54–16:11
18 Fr10:0215:035:01−0:5408:54–16:11
19 Sa10:0315:045:00−0:4008:55–16:11
20 Su10:0315:045:00−0:2608:56–16:11
21 Mo10:0415:045:00−0:1208:56–16:12
22 Tu10:0515:055:00+0:0108:57–16:12
23 We10:0515:055:00+0:1508:57–16:13
24 Th10:0515:065:01+0:3008:58–16:14
25 Fr10:0515:075:01+0:4408:58–16:14
26 Sa10:0515:085:02+0:5608:58–16:15
27 Su10:0515:095:03+1:1108:58–16:16
28 Mo10:0515:105:05+1:2408:58–16:17
29 Tu10:0515:125:06+1:3608:58–16:18
30 We10:0415:135:08+1:5108:58–16:19
31 Th10:0415:155:10+2:0108:58–16:21

Change: how much longer (+) or shorter (−) the day is than the day before. Dawn and dusk: the start of civil twilight in the morning and its end in the evening (the sun 6° below the horizon).

Frequently asked questions

What time is sunrise and sunset in Ulsteinvik today?

Today, Wednesday, 4 November, the sun rises at 08:18 and sets at 16:20: the day is 8 h 2 min long (5 min 47 s shorter than yesterday).

When is the longest day in Ulsteinvik?

In 2026 the longest day in Ulsteinvik is 21 June: the sun rises at 03:40 and sets at 23:36, and the day is 19 h 55 min long. The shortest is 21 December, 5 h.

When is the earliest sunset in Ulsteinvik?

The earliest sunset is on 17 December at 15:03 and the latest on 22 June at 23:36. The earliest sunrise is on 20 June at 03:40 and the latest on 26 December at 10:05. That is why the earliest sunset and the latest sunrise are not on the shortest day: solar noon moves during the year.

Do the times include daylight saving time?

Yes, all times are local time in Ulsteinvik, as on the clock. Times from 29 March to 25 October are in daylight saving time.

What is twilight?

The time before sunrise and after sunset when the Sun is below the horizon but the sky is still light. Civil twilight: down to 6° below the horizon, bright enough to read outdoors. Nautical: down to 12°, the sea horizon is still visible. Astronomical: down to 18°, after which it is fully dark.