Jude’s friend Tomi will fly from Grand Rapids to Chicago to visit his grandparents. Tomi allows 35 mins to get ready + 55 min for the drive. Also, check-in is 1 & ½ hr before departure at 8:15 am. Tomi’s wake-up alarm should be set for?
55+35+90=180 8:15 - 3 hrs = 5:15 am
Jude’s friend Tomi will fly from Grand Rapids to Chicago to visit his grandparents. His flight departs at 8:15 am and takes 55 min. Grand Rapids is 1 hr ahead of Chicago. Tomi’s grandparents arrive at the airport lobby ½ hr early - when?
8:15+55-60=8:10 8:10-30=7:40 am
Jude’s friend Tomi lives in Grand Rapids which is 3 hrs ahead of Calif. Jude calls his friend right after Tomi finishes dinner at 6:30 pm in Grand Rapids. What time is it in Calif when Jude calls?
6:30-3=3:30 pm in Calif.
Where in the world is it midnight when it is noon in Alaska?
-9+12=+3 or -9-12+24=+3 Moscow, Turkey, Saudi Arabia, Ethiopia, Madagascar, etc.
Sam thinks the time of sunset is earlier in San Bernadino, California than Los Angeles, California. Will thinks both cities have the same sunset time. Who is right?
Sam is right because San Bernadino is East of Los Angeles, and both cities are in the same (-8) Pacific Time Zone
Sam thinks the time of sunset is earlier in Denver, Colorado than in Los Angeles, California. Will thinks both cities have the same sunset time. Who is right?
Both: Sunsets change by season. Winter=shorter days & longer nights. Their sunset times match on Oct 21, 22 because Time Zones account for longitude.
On Sunday, Audrey travels Eastward from Guam to Hawaii in 7 hours and 30 minutes. Did she travel back in time?
Yes. Audrey starts from Guam (+10) and ends in Hawaii (-10). She went back 24 hrs by travelling Eastward across the International Dateline. +10-24-10+7.5=-16.5
Sam thinks the time of sunrise is earlier in Denver, Colorado than in Los Angeles, California. Will thinks both cities have the same sunrise time. Who is right?
Both: Sunrises change by season. Winter=shorter days & longer nights. Their sunrise times match on Aug 15, 22 because Time Zones account for longitude.
What is the time difference between Alaska & Hawaii?
One hour. Alaska is 1 hr ahead of Hawaii. Alaska (-9) & Hawaii (-10). (-9)-(-10)=+1
What is the time difference between Chicago & Dallas?
None. Chicago & Dallas are in the same Time Zone (Central -5). (-5)-(-5)=0
Daylight Savings: California shifts time forward 1 hr in Spring and back 1 hr in Fall. Is it possible to accurately predict sunrise and sunset times for Los Angeles, California for the year 2030 without time travelling?
Yes. The sun’s position relative to LA is predictable. Daylight Savings time shifts are also predictably scheduled.
