even ozone, to form a wide variety of toxic products, some of which may cause biological mutations. Examples of these chemicals include the nitrate radical, nitroarenes, and nitrosamines. Visibility Impairment - Nitrate particles and nitrogen dioxide can block the transmission
In the U.S., the clocks will be turned back one hour on Nov. 2, at 2:00 a.m. local time, so trick-or-treaters will hang on to a little more light on Halloween. (Mark your calendar, we âspring aheadâ an hour on the second Sunday in March.). If you live in Europe, you will have already moved your clock back to Standard Time on Sunday, Oct. 26, in the wee hours of the morning (it varies by country), in Asia, most countries do not observe Daylight Saving.
Spring forward, fall backward. Get ready to set your clocks forward Sunday, March 12. Daylight Saving Time begins at 2 a.m. that day. This doesn't apply if you live in Arizona, Hawaii, Puerto Rico, the Virgin Islands, and American Samoa; they don't observe Daylight Saving Time. If your only clock is on your phone or computer, you probably don't have to do a thing. iPhones, iPads and Macbooks all update automatically.