49:
315:
On
September 24, 2020, Yukon switched to the Mountain Standard Time year-round. Therefore, clocks in Yukon and Alberta are the same in the winter, and Alberta is one hour ahead in summer. Previously, the territory had used the Pacific Time Zone with daylight saving time: UTC−8 in winter and UTC−7 in
1021:
The specification for the
Mountain Time Zone in the United States is set forth at 49 CFR 71.8. The boundary between Central and Mountain time zones is set forth at 49 CFR 71.7, and the boundary between Mountain and Pacific time zones is set forth at 49 CFR
1002:
1258:
1625:
1251:
257:
in the United States do not observe daylight saving time (DST), and during the spring, summer, and autumn months they are on the same time as
441:
1244:
611:
1195:
437:
433:
265:, most of which lies within Arizona but extends into Utah and New Mexico (which do observe DST), does observe DST, although the
337:
619:
383:
1310:
1292:
1207:
1183:
631:
603:
1048:
820:
607:
166:
729:
639:
627:
623:
615:
599:
130:
1589:
1541:
826:
635:
478:
429:
277:
1579:
1546:
940:
957:
1620:
1615:
684:
663:
583:
1524:
1126:
984:
801:
659:
579:
575:
571:
544:
1131:
776:
655:
553:
447:
333:
303:
258:
158:
1417:
866:
757:
459:
405:
142:
108:
1610:
742:
396:
154:
1506:
1488:
795:
771:
425:
1121:
220:("Pacific Zone"). In the United States and Canada, the Mountain Time Zone is to the east of the
1470:
1452:
1434:
1363:
1345:
1095:
1070:
1043:
979:
945:
915:
887:
873:
853:
806:
722:
710:
699:
689:
560:
524:
421:
344:
320:
225:
221:
1328:
935:
908:
880:
752:
747:
715:
355:
327:
273:
266:
201:
1211:
1199:
1187:
973:
901:
859:
197:
150:
1192:
1584:
1574:
950:
922:
789:
535:
387:
377:
289:
1556:
1551:
1534:
1529:
1517:
1512:
1499:
1494:
1481:
1476:
1463:
1458:
1445:
1440:
1427:
1422:
1410:
1405:
1392:
1387:
1374:
1369:
1356:
1351:
1338:
1333:
1321:
1316:
1303:
1298:
146:
138:
82:
72:
1604:
989:
894:
516:
262:
134:
126:
694:
675:
Alphabetical list of major cities located within the
Mountain Time Zone. Cities in
645:
595:
463:
455:
364:
360:
1216:
1204:
1226:
930:
846:
735:
343:
One territory and one province are split between the
Mountain Time Zone and the
319:
One province and one territory are split between the
Mountain Time Zone and the
294:
One province and two territories are fully contained in the
Mountain Time Zone:
269:, as well as some Arizona state offices lying within the Navajo Nation, do not.
1231:
1180:
1236:
838:
831:
812:
497:
424:: Observes Daylight Savings Time, only in northwestern border municipalities (
205:
1267:
231:
In some areas, starting in 2007, the local time changes from MST to MDT at 2
162:
40:
48:
783:
766:
589:
487:
704:
512:
507:
492:
454:): three of the four islands have the same time as Mountain Time Zone:
416:
401:
351:
298:
254:
17:
172:
In the United States and Canada, this time zone is generically called
762:
567:
549:
540:
451:
411:
250:
161:. In the United States, the exact specification for the location of
1221:
965:
651:
531:
308:
1384:(Arizona, Sonora, Yukon, and Northeastern British Columbia only)
502:
1240:
196:) when observing daylight saving time. The term refers to the
1096:"49 CFR 71.9 Boundary line between mountain and Pacific zones"
1071:"49 CFR 71.7 Boundary line between central and mountain zones"
523:
Three states are split between the
Mountain Time Zone and the
1152:
559:
Five states are split between the
Mountain Time Zone and the
483:
Six states are fully contained in the
Mountain Time Zone:
165:
and the dividing lines between zones is set forth in the
239:
am MDT on the second Sunday in March and returns at 2
1003:
Effects of time zones on North
American broadcasting
141:) is in effect, and by subtracting six hours during
106:
88:
78:
68:
63:
34:
563:. The following locations observe Mountain Time:
527:. The following locations observe Mountain Time:
1455:(parts of Nunavut, Ontario, and the Caribbean)
408:municipality, which uses the Central Time Zone.
149:). The clock time in this zone is based on the
515:(does not use daylight saving time except for
280:is the largest metropolitan area in the zone.
272:The largest city in the Mountain Time Zone is
1252:
1205:History of U.S. time zones and UTC conversion
330:– northeastern and southeastern regions
215:
209:
8:
208:. In Mexico, this time zone is known as the
386:, with certain exceptions. The following
129:keeps time by subtracting seven hours from
1259:
1245:
1237:
390:have the same time as Mountain Time Zone:
115:DST is observed in some of this time zone.
31:
1122:"Arizona Says No to Daylight-Saving Time"
382:As of October 30, 2022, Mexico abandoned
1277:
247:am MST on the first Sunday in November.
1035:
1014:
1287:Hours from UTC: Daylight saving time
679:do not observe daylight saving time:
7:
188:) when observing standard time, and
25:
598:: the southwest corner counties (
47:
1626:Time zones in the United States
1120:Robbins, Ted (March 11, 2007).
630:) observe MST. The counties of
1:
1284:Hours from UTC: Standard time
1222:Official times across Mexico
1100:Code of Federal Regulations
1075:Code of Federal Regulations
1049:Code of Federal Regulations
1044:"49 CFR 71.8 Mountain zone"
821:La Paz, Baja California Sur
167:Code of Federal Regulations
1642:
1198:February 15, 2009, at the
1186:December 24, 2015, at the
1153:"HOME - Yukon Legislation"
730:Colorado Springs, Colorado
476:
442:Práxedis Gilberto Guerrero
375:
287:
131:Coordinated Universal Time
99:18:49, September 20, 2024
94:17:49, September 20, 2024
27:Time zone of North America
1590:Time in the United States
1567:
1542:Saint Pierre and Miquelon
1473:(other states/provinces)
1437:(other states/provinces)
1402:(other states/provinces)
1366:(other states/provinces)
1275:
827:Lake Havasu City, Arizona
479:Time in the United States
278:Phoenix metropolitan area
114:
93:
46:
39:
1580:Time in the Danish Realm
941:Rapid City, South Dakota
671:Major metropolitan areas
57: Mountain Time Zone
1210:August 8, 2011, at the
685:Albuquerque, New Mexico
224:and to the west of the
180:). Specifically, it is
1127:Weekend Edition Sunday
985:West Valley City, Utah
802:Fort Collins, Colorado
253:in Mexico and most of
216:
210:
190:Mountain Daylight Time
182:Mountain Standard Time
1132:National Public Radio
958:San Luis Río Colorado
777:Westminster, Colorado
448:Revillagigedo Islands
384:daylight savings time
334:Northwest Territories
304:Northwest Territories
259:Pacific Daylight Time
159:Greenwich Observatory
1217:Canada time zone map
867:Metropolitan Phoenix
758:Centennial, Colorado
460:San Benedicto Island
211:tiempo de la montaña
143:daylight saving time
1491:(Natashquan River)
1181:World time zone map
743:Metropolitan Denver
662:, and northwestern
592:: western one third
397:Baja California Sur
200:, which range from
155:105th meridian west
1509:(other provinces)
1348:(parts of Alaska)
1313:(parts of Alaska)
1193:U.S. time zone map
796:Flagstaff, Arizona
772:Lakewood, Colorado
543:: the majority of
123:Mountain Time Zone
35:Mountain Time Zone
1598:
1597:
1562:
1561:
1157:Yukon Legislation
980:West Jordan, Utah
946:Red Deer, Alberta
916:Surprise, Arizona
888:Glendale, Arizona
874:Chandler, Arizona
854:Missoula, Montana
807:Greeley, Colorado
711:Cheyenne, Wyoming
700:Boulder, Colorado
690:Billings, Montana
561:Central Time Zone
525:Pacific Time Zone
406:Bahía de Banderas
404:: except for the
345:Central Time Zone
321:Pacific Time Zone
226:Central Time Zone
222:Pacific Time Zone
119:
118:
16:(Redirected from
1633:
1278:
1270:in North America
1261:
1254:
1247:
1238:
1168:
1167:
1165:
1163:
1149:
1143:
1142:
1140:
1138:
1117:
1111:
1110:
1108:
1106:
1092:
1086:
1085:
1083:
1081:
1067:
1061:
1060:
1058:
1056:
1040:
1023:
1019:
936:Pueblo, Colorado
909:Phoenix, Arizona
881:Gilbert, Arizona
753:Aurora, Colorado
748:Arvada, Colorado
356:Kitikmeot Region
328:British Columbia
274:Phoenix, Arizona
267:Hopi Reservation
246:
242:
238:
234:
219:
213:
202:British Columbia
56:
51:
32:
21:
1641:
1640:
1636:
1635:
1634:
1632:
1631:
1630:
1601:
1600:
1599:
1594:
1563:
1544:
1311:Hawaii–Aleutian
1293:Hawaii–Aleutian
1271:
1265:
1227:Canada time map
1212:Wayback Machine
1200:Wayback Machine
1188:Wayback Machine
1177:
1172:
1171:
1161:
1159:
1151:
1150:
1146:
1136:
1134:
1119:
1118:
1114:
1104:
1102:
1094:
1093:
1089:
1079:
1077:
1069:
1068:
1064:
1054:
1052:
1042:
1041:
1037:
1032:
1027:
1026:
1020:
1016:
1011:
999:
994:
974:Tucson, Arizona
902:Peoria, Arizona
860:Nogales, Sonora
673:
481:
475:
380:
374:
292:
286:
244:
240:
236:
232:
198:Rocky Mountains
151:mean solar time
98:
59:
58:
54:
28:
23:
22:
15:
12:
11:
5:
1639:
1637:
1629:
1628:
1623:
1621:Time in Mexico
1618:
1616:Time in Canada
1613:
1603:
1602:
1596:
1595:
1593:
1592:
1587:
1585:Time in Mexico
1582:
1577:
1575:Time in Canada
1572:
1568:
1565:
1564:
1560:
1559:
1554:
1549:
1538:
1537:
1532:
1527:
1521:
1520:
1515:
1510:
1503:
1502:
1497:
1492:
1485:
1484:
1479:
1474:
1467:
1466:
1461:
1456:
1449:
1448:
1443:
1438:
1431:
1430:
1425:
1420:
1414:
1413:
1408:
1403:
1396:
1395:
1390:
1385:
1378:
1377:
1372:
1367:
1360:
1359:
1354:
1349:
1342:
1341:
1336:
1331:
1325:
1324:
1319:
1314:
1307:
1306:
1301:
1296:
1289:
1288:
1285:
1282:
1276:
1273:
1272:
1266:
1264:
1263:
1256:
1249:
1241:
1235:
1234:
1229:
1224:
1219:
1214:
1202:
1190:
1176:
1175:External links
1173:
1170:
1169:
1144:
1112:
1087:
1062:
1034:
1033:
1031:
1028:
1025:
1024:
1013:
1012:
1010:
1007:
1006:
1005:
998:
995:
993:
992:
987:
982:
977:
970:
962:
954:
951:Salt Lake City
948:
943:
938:
933:
928:
927:
926:
923:Tempe, Arizona
919:
912:
905:
898:
891:
884:
877:
863:
856:
851:
843:
835:
829:
824:
817:
809:
804:
799:
792:
790:El Paso, Texas
787:
781:
780:
779:
774:
769:
760:
755:
750:
740:
732:
727:
723:Ciudad Obregón
719:
713:
708:
702:
697:
692:
687:
681:
672:
669:
668:
667:
649:
648:: western half
643:
593:
587:
557:
556:
547:
545:Malheur County
538:
536:Southern Idaho
521:
520:
510:
505:
500:
495:
490:
477:Main article:
474:
471:
470:
469:
468:
467:
456:Socorro Island
445:
419:
414:
409:
399:
378:Time in Mexico
376:Main article:
373:
370:
369:
368:
358:
341:
340:
331:
313:
312:
306:
301:
290:Time in Canada
288:Main article:
285:
282:
169:at 49 CFR 71.
117:
116:
112:
111:
107:Observance of
104:
103:
91:
90:
86:
85:
80:
76:
75:
70:
66:
65:
61:
60:
53:
52:
44:
43:
37:
36:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1638:
1627:
1624:
1622:
1619:
1617:
1614:
1612:
1609:
1608:
1606:
1591:
1588:
1586:
1583:
1581:
1578:
1576:
1573:
1570:
1569:
1566:
1558:
1555:
1553:
1550:
1548:
1543:
1540:
1539:
1536:
1533:
1531:
1528:
1526:
1523:
1522:
1519:
1516:
1514:
1511:
1508:
1505:
1504:
1501:
1498:
1496:
1493:
1490:
1487:
1486:
1483:
1480:
1478:
1475:
1472:
1469:
1468:
1465:
1462:
1460:
1457:
1454:
1451:
1450:
1447:
1444:
1442:
1439:
1436:
1433:
1432:
1429:
1426:
1424:
1421:
1419:
1416:
1415:
1412:
1409:
1407:
1404:
1401:
1398:
1397:
1394:
1391:
1389:
1386:
1383:
1380:
1379:
1376:
1373:
1371:
1368:
1365:
1362:
1361:
1358:
1355:
1353:
1350:
1347:
1344:
1343:
1340:
1337:
1335:
1332:
1330:
1327:
1326:
1323:
1320:
1318:
1315:
1312:
1309:
1308:
1305:
1302:
1300:
1297:
1294:
1291:
1290:
1286:
1283:
1280:
1279:
1274:
1269:
1262:
1257:
1255:
1250:
1248:
1243:
1242:
1239:
1233:
1232:U.S. time map
1230:
1228:
1225:
1223:
1220:
1218:
1215:
1213:
1209:
1206:
1203:
1201:
1197:
1194:
1191:
1189:
1185:
1182:
1179:
1178:
1174:
1158:
1154:
1148:
1145:
1133:
1129:
1128:
1123:
1116:
1113:
1101:
1097:
1091:
1088:
1076:
1072:
1066:
1063:
1051:
1050:
1045:
1039:
1036:
1029:
1018:
1015:
1008:
1004:
1001:
1000:
996:
991:
990:Yuma, Arizona
988:
986:
983:
981:
978:
976:
975:
971:
969:
967:
963:
961:
959:
955:
952:
949:
947:
944:
942:
939:
937:
934:
932:
929:
925:
924:
920:
918:
917:
913:
911:
910:
906:
904:
903:
899:
897:
896:
895:Mesa, Arizona
892:
890:
889:
885:
883:
882:
878:
876:
875:
871:
870:
869:
868:
864:
862:
861:
857:
855:
852:
850:
848:
844:
842:
840:
836:
833:
830:
828:
825:
823:
822:
818:
816:
814:
810:
808:
805:
803:
800:
798:
797:
793:
791:
788:
785:
782:
778:
775:
773:
770:
768:
764:
761:
759:
756:
754:
751:
749:
746:
745:
744:
741:
739:
737:
733:
731:
728:
726:
724:
720:
717:
716:Ciudad Juárez
714:
712:
709:
706:
703:
701:
698:
696:
693:
691:
688:
686:
683:
682:
680:
678:
670:
665:
661:
657:
653:
650:
647:
644:
641:
637:
633:
629:
625:
621:
617:
613:
612:Golden Valley
609:
605:
601:
597:
594:
591:
588:
585:
581:
577:
573:
569:
566:
565:
564:
562:
555:
554:West Wendover
551:
548:
546:
542:
539:
537:
533:
530:
529:
528:
526:
518:
517:Navajo Nation
514:
511:
509:
506:
504:
501:
499:
496:
494:
491:
489:
486:
485:
484:
480:
473:United States
472:
465:
461:
457:
453:
449:
446:
443:
439:
435:
431:
427:
423:
420:
418:
415:
413:
410:
407:
403:
400:
398:
395:
394:
393:
392:
391:
389:
385:
379:
371:
366:
362:
359:
357:
353:
350:
349:
348:
346:
339:
335:
332:
329:
326:
325:
324:
322:
317:
310:
307:
305:
302:
300:
297:
296:
295:
291:
283:
281:
279:
275:
270:
268:
264:
263:Navajo Nation
260:
256:
252:
248:
229:
227:
223:
218:
217:zona Pacífico
212:
207:
203:
199:
195:
191:
187:
183:
179:
175:
174:Mountain Time
170:
168:
164:
160:
156:
152:
148:
144:
140:
136:
135:standard time
132:
128:
127:North America
124:
113:
110:
105:
102:
97:
92:
87:
84:
81:
77:
74:
71:
67:
62:
50:
45:
42:
38:
33:
30:
19:
1545:and most of
1525:Newfoundland
1418:Saskatchewan
1399:
1381:
1295:(in Hawaii)
1162:February 16,
1160:. Retrieved
1156:
1147:
1135:. Retrieved
1125:
1115:
1103:. Retrieved
1099:
1090:
1078:. Retrieved
1074:
1065:
1053:. Retrieved
1047:
1038:
1017:
972:
964:
956:
921:
914:
907:
900:
893:
886:
879:
872:
865:
858:
845:
837:
819:
811:
794:
734:
721:
695:Boise, Idaho
676:
674:
646:South Dakota
596:North Dakota
558:
522:
482:
464:Roca Partida
381:
367:and vicinity
365:Lloydminster
361:Saskatchewan
342:
318:
314:
293:
271:
249:
230:
193:
189:
185:
181:
177:
173:
171:
122:
120:
100:
95:
89:Current time
29:
931:Provo, Utah
718:, Chihuahua
243:am MDT to 1
235:am MST to 3
133:(UTC) when
1611:Time zones
1605:Categories
1268:Time zones
1105:October 7,
1080:October 7,
1055:October 7,
1030:References
839:Los Mochis
832:Lethbridge
813:Hermosillo
642:are split.
498:New Mexico
206:New Mexico
163:time zones
64:UTC offset
1547:Greenland
1281:Time zone
968:, Nayarit
849:, Sinaloa
841:, Sinaloa
834:, Alberta
786:, Alberta
738:, Sinaloa
707:, Alberta
664:Culberson
620:Hettinger
438:Guadalupe
430:Ascensión
422:Chihuahua
147:UTC−06:00
139:UTC−07:00
83:UTC−06:00
73:UTC−07:00
41:Time zone
1571:See also
1507:Atlantic
1489:Atlantic
1400:Mountain
1382:Mountain
1208:Archived
1196:Archived
1184:Archived
1137:June 18,
997:See also
960:, Sonora
847:Mazatlán
815:, Sonora
784:Edmonton
767:Colorado
736:Culiacán
725:, Sonora
666:Counties
660:Hudspeth
632:McKenzie
604:Billings
590:Nebraska
586:Counties
584:Hamilton
488:Colorado
338:Tungsten
336:–
316:summer.
311:(no DST)
1471:Eastern
1453:Eastern
1435:Central
1364:Pacific
1346:Pacific
705:Calgary
656:El Paso
580:Greeley
576:Wallace
572:Sherman
513:Arizona
508:Wyoming
493:Montana
417:Sinaloa
402:Nayarit
352:Nunavut
299:Alberta
255:Arizona
157:of the
153:at the
18:MST7MDT
1329:Alaska
953:, Utah
763:Denver
638:, and
608:Bowman
568:Kansas
550:Nevada
541:Oregon
452:Colima
440:, and
434:Juárez
412:Sonora
388:states
372:Mexico
284:Canada
276:; the
261:. The
251:Sonora
245:
241:
237:
233:
55:
1535:−2:30
1530:−3:30
1022:71.9.
1009:Notes
966:Tepic
652:Texas
640:Sioux
628:Stark
624:Slope
616:Grant
600:Adams
532:Idaho
426:Janos
309:Yukon
1164:2022
1139:2012
1107:2011
1082:2011
1057:2011
677:bold
636:Dunn
582:and
503:Utah
462:and
121:The
1317:−10
1304:−10
1299:−10
214:or
204:to
194:MDT
186:MST
125:of
109:DST
101:MDT
96:MST
79:MDT
69:MST
1607::
1557:−2
1552:−3
1518:−3
1513:−4
1500:−4
1495:−4
1482:−4
1477:−5
1464:−5
1459:−5
1446:−5
1441:−6
1428:−6
1423:−6
1411:−6
1406:−7
1393:−7
1388:−7
1375:−7
1370:−8
1357:−8
1352:−8
1339:−8
1334:−9
1322:−9
1155:.
1130:.
1124:.
1098:.
1073:.
1046:.
765:,
658:,
654::
634:,
626:,
622:,
618:,
614:,
610:,
606:,
602:,
578:,
574:,
570::
552::
534::
458:,
436:,
432:,
428:,
363::
354::
347::
323::
228:.
178:MT
1260:e
1253:t
1246:v
1166:.
1141:.
1109:.
1084:.
1059:.
519:)
466:.
450:(
444:)
192:(
184:(
176:(
145:(
137:(
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
