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.
Temperature. Sunflowers germinate best at a soil temperature of 70 to 85 degrees Fahrenheit. Outdoor planting time is typically several weeks after the last spring frost when the soil has warmed thoroughly.unflower seeds are planted one-half inch deep. Because sunflowers are an oil-rich seed, they require slightly more water for germination than many other seeds. This requires watering the ground thoroughly outdoors after planting and not allowing the soil to dry out completely until germination occurs.