UTC−01:00

<h2 id="as-standard-time-northern-hemisphere-winter">As standard time (Northern Hemisphere winter)</h2>
<h3>Atlantic Ocean</h3>
<ul><li>Portugal
<ul><li><a href="/facts/Azores/yWF1EGs8">Azores</a> islands</li></ul></li></ul>
<h2 id="as-daylight-saving-time-northern-hemisphere-summer">As daylight saving time (Northern Hemisphere summer)</h2>
<h3>North America</h3>
<ul><li><a href="/facts/Greenland/aagXRTB7">Greenland</a> (summer)<a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a>
<ul><li>Except areas around <a href="/facts/Danmarkshavn/3H8IblWF">Danmarkshavn</a>, and <a href="/facts/Pituffik/YDprX2P4">Pituffik (Thule)</a></li></ul></li></ul>
<h2 id="as-standard-time-year-round">As standard time (year-round)</h2>
<h3>Africa</h3>
<h4>Atlantic Ocean</h4>
<ul><li><a href="/facts/Cape_Verde/YCNhPVhE">Cape Verde</a></li></ul>
<h2 id="anomalies">Anomalies</h2>
<h3>Regions in UTC−02:00 longitudes using UTC−01:00 time</h3>
<ul><li>The westernmost part of legal UTC-01:00 area in <a href="/facts/Ittoqqortoormiit_Municipality/s7w7UPdf">Ittoqqortoormiit Municipality</a> (<a href="/facts/East_Greenland/kBTdEKBN">East Greenland</a>)</li>
<li>Azores islands (Portugal)</li>
<li>Cape Verde</li></ul>
<h3>Areas in UTC−01:00 longitudes using other time zones</h3>
<h4>Using UTC−02:00</h4>
<ul><li>The easternmost tip of Greenland (excluding legal UTC-1 and UTC±0 areas)</li></ul>
<h4>Using UTC±00:00</h4>
<p>In Africa:
</p>
<ul><li>Liberia</li>
<li>Sierra Leone</li>
<li>Guinea</li>
<li>Guinea-Bissau</li>
<li>Senegal</li>
<li>The Gambia</li>
<li>Sahrawi Arab Democratic Republic <i>(disputed territory)</i></li>
<li>Most of Mauritania</li>
<li>Southwesternmost part of Mali</li>
<li>The very westernmost part of Ivory Coast</li></ul>
<p>In Atlantic Ocean:
</p>
<ul><li><a href="/facts/Madeira/HRlYxvhe">Madeira</a> (Portugal)</li>
<li><a href="/facts/Canary_Islands/7lfpqymu">Canary Islands</a> (Spain)</li></ul>
<p>In Europe:
</p>
<ul><li>Most of <a href="/facts/Iceland/E4KGYs2j">Iceland</a>, except the westernmost part, including northwest peninsula and main town of <a href="/facts/%25C3%258Dsafj%25C3%25B6r%25C3%25B0ur/r00TgQhP">Ísafjörður</a> (lies in "physical" time UTC-2)</li>
<li>Most of <a href="/facts/Portugal/lYzwDQ63">Portugal</a> west of 7.5ºW, except the easternmost part, including cities such as <a href="/facts/Bragan%25C3%25A7a_(Portugal)/u6hXkk66">Bragança</a> and <a href="/facts/Guarda%2c_Portugal/D4z7fAet">Guarda</a> (lies in "physical" UTC)</li>
<li>The northeastern part of Greenland, including <a href="/facts/Danmarkshavn/3H8IblWF">Danmarkshavn</a></li>
<li><a href="/facts/Ireland/35vYxXdP">Ireland</a> west of 7.5ºW, including the cities of <a href="/facts/Cork_(city)/MQKCwx4l">Cork</a>, <a href="/facts/Limerick/3Argmh9U">Limerick</a>, and <a href="/facts/Galway/7fJ5vqJW">Galway</a></li>
<li>The westernmost tip of <a href="/facts/Northern_Ireland/Jmr0NRyl">Northern Ireland</a>, including the county town of <a href="/facts/County_Fermanagh/SrU17Mex">County Fermanagh</a>, <a href="/facts/Enniskillen/x6jTcwnn">Enniskillen</a></li>
<li>The westernmost island of the <a href="/facts/Faroe_Islands/HMJ3bfmN">Faroe Islands</a> (autonomous region of the <a href="/facts/Denmark/KVtykzsw">Danish Kingdom</a>), <a href="/facts/Mykines%2c_Faroe_Islands/pNTPqqfY">Mykines</a></li>
<li>The extreme westerly portion of the <a href="/facts/Outer_Hebrides/UtWr1Mmp">Outer Hebrides</a>, in the west of <a href="/facts/Scotland/VGwbbxB2">Scotland</a>; for instance, <a href="/facts/Vatersay/SsS6ggs8">Vatersay</a>, an inhabited island and the westernmost settlement of <a href="/facts/Great_Britain/TNgGQRPj">Great Britain</a>, lies at 7°54'W. If <a href="/facts/Uninhabited_island/pd8cJH44">uninhabited islands</a> or rocks are taken into account <a href="/facts/St_Kilda%2c_Scotland/NynpnX0l">St Kilda</a>, west of the Outer Hebrides, at 8°58'W, and <a href="/facts/Rockall/9zGysMpQ">Rockall</a>, at 13°41'W, should be included.</li>
<li></li></ul>
<h4>Using UTC+01:00</h4>
<p>In Africa:
</p>
<ul><li>Southwestern part of <a href="/facts/Morocco/6ly8170M">Morocco</a>, including <a href="/facts/Casablanca/f6dhYws1">Casablanca</a></li>
<li>Most part in Moroccan Sahara (excluding parts occupied by <a href="/facts/Sahrawi_Arab_Democratic_Republic/M3ld4Y8P">Sahrawi Arab Democratic Republic</a> which use UTC+00:00)</li></ul>
<p>In Europe:
</p>
<ul><li>Parts of Galicia, Extremadura and Andalucia, Spain</li>
<li><a href="/facts/Jan_Mayen/PRKhvUc6">Jan Mayen</a>, <a href="/facts/Norway/wlDRKRTR">Norway</a></li></ul>

<h2 id="external-links">External links</h2>
<ul><li> Media related to UTC−01:00 at Wikimedia Commons</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Girma, Lebawit Lily (March 24, 2023). "Greenland Solves the Daylight Saving Time Debate". Bloomberg.com. Retrieved March 28, 2023. <a href="https://www.bloomberg.com/news/articles/2023-03-24/greenland-keeps-daylight-saving-time-permanently-changing-its-time-zone" target="_blank">https://www.bloomberg.com/news/articles/2023-03-24/greenland-keeps-daylight-saving-time-permanently-changing-its-time-zone</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
</ol>

UTC−01:00 open-in-new

UTC−01:00