Chronic fatigue syndrome (CFS) and fibromyalgia (feye-broh-meye-AL-juh) (FM) are not autoimmune diseases. But they often have symptoms of some autoimmune disease, like being tired all the time and pain. 1  CFS can cause you to be very tired, have trouble concentrating, feel weak, and have muscle pain.2  FM is a disorder in which pain or tenderness is felt in multiple places all over the body.verall, autoimmune diseases are common, affecting more than 23.5 million Americans. They are a leading cause of death and disability. Yet some autoimmune diseases are rare, while others, such as Hashimoto's disease, affect many people.
PDT starts at 2 AM on the second Sunday in March each year, turn the clock 1 hour forward to 3 AM at that time. PDT ends at 2 AM on the first Sunday of November each year, turn the clock 1 hour back to 1 AM at that time.
â¢ PST is one of the time zones observed by North America. PDT is a variation of this time zone. â¢ Both PST and PDT are observed by several states in US, Canada, and Mexico. â¢ The purpose of PST is to tell the time in reference to GMT or UTC. However, the purpose of PDT is saving daylight time during the summer. â¢ PST is eight hours behind UTC. So, PST is UTC â 8. PDT is seven hours behind UTC. So, PDT is UTC â 7. So, the difference between PDT and PST is one hour. â¢ States that observe PST and PDT are as follows. The US states that follow PST and PDT are California, Idaho, Nevada, Oregon, and Washington. Canadian provinces where PDT is used during summers and PST the rest of the time are British Columbia and Yukon.