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.
Sunflowers are known for the way the blooms, or flower heads, turn to face the sun throughout the day. The sunflower head is actually composed of hundreds to thousands of individual flowers joined together. Single-stem sunflowers produce one large bloom per plant. This bloom may be followed by multiple smaller flowers. Multibranching sunflowers have multiple stems of flowers and bloom over a longer period. Sunflower stems can be pinched back before they flower to encourage bushier growth and more blooms.