2000: When parts of Australia began DST in late winter, overall electricity consumption did not decrease, but the morning peak load and prices increased. - Daylight saving time, Wikipedia.

2000: Although it has been argued that clock shifts correlate with decreased economic efficiency, and that in 2000 the daylight-saving effect implied an estimated one-day loss of $31 billion on U.S. - Daylight saving time, Wikipedia.

, 2004: Since the adoption of Daylight Saving Time, the Allstate 400 at the Brickyard will usually run past 6 PM. - 2004 Indianapolis 500, Wikipedia.

2005: The government of Kazakhstan cited health complications due to clock shifts as a reason for abolishing DST in 2005. - Daylight saving time, Wikipedia.

2005: The 2005 Israeli Daylight Saving Law established predictable rules using the Jewish calendar but Windows zone files cannot represent the rules' dates in a year-independent way. - Daylight saving time, Wikipedia.

2005: Change was part of the Energy Policy Act of 2005; previously, from 1987 through 2006, the start and end dates were the first Sunday in April and the last Sunday in October, and Congress retains the right to go back to the previous dates now that an energy-consumption study has been done. - Daylight saving time, Wikipedia.

2005: For example, before 2005, DST in Israel varied each year and was skipped some years. - Daylight saving time, Wikipedia.

2005: DST, and both Idaho senators voted for it based on the premise that during DST fast-food restaurants sell more French fries, which are made from Idaho potatoes;^[3] in 2005, the Sporting Goods Manufacturers Association and the National Association of Convenience Stores successfully lobbied for the 2007 extension to U.S. - Daylight saving time, Wikipedia.

2005: Beginning with the 2005 races, the issue became moot as the state of Indiana finally decided to go to daylight saving time. - Coca-Cola 600, Wikipedia.

2005: Between 2005 and 2008, on the decision of Mahmoud Ahmadinejad, Iran did not observe daylight saving time, called Iran Daylight Time (IRDT). - Iran Standard Time, Wikipedia.

2006: In Western Australia during summer 2006–07, DST increased electricity consumption during hotter days and decreased it during cooler days, with consumption rising 0.6% overall. - Daylight saving time, Wikipedia.

2006: The change from Daylight Saving Time to Standard Time in Australian states that follow it was delayed from 26 March to 2 April for 2006 to avoid affecting the games. - 2006 Commonwealth Games, Wikipedia.

2006: Since Indiana went to Daylight Saving Time in 2006, this phenomenon has been somewhat dimished. - Indianapolis 500 traditions, Wikipedia.

2007: For example, the 2007 change to DST rules in North America required many computer systems to be upgraded, with the greatest impact on email and calendaring programs like Microsoft Outlook; the upgrades consumed a significant effort by corporate information technologists. - Daylight saving time, Wikipedia.

2007: A 2007 study found that the earlier start to DST that year had little or no effect on electricity consumption in California. - Daylight saving time, Wikipedia.

2007: Starting in 2007, most of the United States and Canada observe DST from the second Sunday in March to the first Sunday in November, almost two-thirds of the year. - Daylight saving time, Wikipedia.

2007: A 2007 study estimated that winter daylight saving would prevent a 2% increase in average daily electricity consumption in Great Britain. - Daylight saving time, Wikipedia.

2007: For example, a 2007 North American rule change cost an estimated $500 million to $1 billion. - Daylight saving time, Wikipedia.

2007: Although a 2007 study estimated that introducing DST to Japan would reduce household lighting energy consumption,^[44] a 2007 simulation estimated that DST would increase overall energy use in Osaka residences by 0.13%, with a 0.02% decrease due to less lighting more than outweighed by a 0.15% increase due to extra cooling; neither study examined non-residential energy use. - Daylight saving time, Wikipedia.

2007: The games were released one hour later during daylight saving time in 2007 and 2008, but not since then. - List of Virtual Console games (PAL region), Wikipedia.

November 4, 2007: Daylight saving time in the United States and most of Canada will end, one week later than the previous schedule, in accordance with the Energy Policy Act of 2005. - 2007 in the United States, Wikipedia.

2008: Microsoft hinted that future versions of Windows will partially support a Windows registry entry RealTimeIsUniversal that had been introduced many years earlier, when Windows NT supported RISC machines with UTC clocks, but had not been maintained since. - Daylight saving time, Wikipedia.

2008: A 2008 Swedish study found that heart attacks were significantly more common the first three weekdays after the spring transition, and significantly less common the first weekday after the autumn transition. - Daylight saving time, Wikipedia.

2008: A 2008 study found that although male suicide rates rise in the weeks after the spring transition, the relationship weakened greatly after adjusting for season. - Daylight saving time, Wikipedia.

2008: A 2008 study examined billing data in Indiana before and after it adopted DST in 2006, and concluded that DST increased overall residential electricity consumption by 1%, due mostly to extra afternoon cooling and due also to extra morning heating; the main increases came in the fall. - Daylight saving time, Wikipedia.

2008: In the past, Australian districts went even further and did not always agree on start and end dates; for example, in 2008 most DST-observing areas shifted clocks forward on October 5 but Western Australia shifted on October 26. - Daylight saving time, Wikipedia.

2008: The 2008 DOE report found no significant increase in motor gasoline consumption due to the 2007 U.S. - Daylight saving time, Wikipedia.

2008: Daylight saving time will be used starting from 2008 for the first time in its history. - Mauritius Time, Wikipedia.

2008: The U.S. Dept. of Energy (DOE) concluded in a 2008 report that the 2007 U.S. - Daylight saving time, Wikipedia.

, 2008: The switch from daylight saving time to standard time was on November 2nd. - 2008 Skate Canada International, Wikipedia.

2009: After a three-year trial, more than 55% of Western Australians voted against DST in 2009, with rural areas strongly opposed. - Daylight saving time, Wikipedia.

, 2009: ^A  The state of Arizona is in the Mountain Time Zone, but does not observe Daylight saving time, so it is effectively on Pacific Daylight Time from mid-March to early-November. - 2009 Arizona Cardinals season, Wikipedia.