From east to west they are Atlantic Standard Time (AST), Eastern Standard Time (EST), Central Standard Time (CST), Mountain Standard Time (MST), Pacific Standard Time (PST), Alaskan Standard Time (AKST), Hawaii-Aleutian Standard Time (HST), Samoa standard time (UTC-11) and Chamorro Standard Time (UTC+10). View the standard time zone boundaries. Daylight Saving Time begins at 2:00 a.m. local time on the second Sunday in March. On the first Sunday in November areas on Daylight Saving Time return to Standard Time at 2:00 a.m. The names in each time zone change along with Daylight Saving Time.
Most gardeners sow fast-growing annuals, such as sunflowers, bachelor buttons, calendulas, zinnias and nasturtiums right into the garden. I agree that it's not worth the trouble to grow these seeds indoors for just three to four weeks, and also run the risk of transplant shock.
Waiting is especially difficult when you're planting sunflower seeds and anticipating the happy faces smiling over the garden. Many annual sunflowers (Helianthus annuus) sprout quickly, within seven to 10 days, but you may need to wait as long as two months before the bright flowers appear. Sunflower Delights Sunflowers, one of the most interesting flowers in the garden, grow rapidly from tiny seeds into tall stalks. Little is more pleasant on a summer's afternoon than watching the large, bright flower heads turn to follow the sun.