What causes heavy periods. Diagnosing what causes heavy periods can sometimes be difficult. However, some physical condition affecting the uterus, such as fibroids and polyps, may cause heavy menstrual bleeding. The more common reasons for heavy periods are: fibroids. polyps. endometrial hyperplasia. endometrial cancer. adenomyosis.
USA and Canada past and future DST schedules here. Hawaii is in the Hawaii-Aleutian Time Zone in the United States, which is 10 hours behind Greenwich Mean Time ( GMT-10 ). Unlike most states in the US, Daylight Saving Time is not observed in Hawaii , which maintains its 10 hours difference behind GMT throughout the year.
Hawaii Time and Alaska Time are separate time zones. View current time in all US time zones: World Clock USA. Daylight Saving Time Since 2007: Daylight Saving Time begins for most of the United States at 2 a.m. on the second Sunday of March . Time revert to standard time at 2 a.m. on the first Sunday in November .