It’s here. Already. Daylight Saving Time will revert to Pacific Standard Time at 2 a.m. on Sunday (Nov. 3). That means you’ll need to set your clocks back one hour (“spring ahead, fall back”) on Saturday night, assuming you don’t want to stay up until 2 a.m. Start thinking about how to use that “extra” hour. Your digital devices will probably make the adjustment automatically. Good luck with any digital clock on your kitchen stove — you may be setting the oven temperature to 500 degrees for 17 hours if you’re not careful. As for car clocks, at worst they will only be wrong half the year if you can’t figure out how to adjust them.