If you are looking for information on time zones, the web can be a great place to start. You can also find great arts and crafts for your kids and learn about maps of the world while your at it.
The armed forces of many nations give letters to time zones, where Z (Zulu) = Zero meridian (UTC or GMT).
Other letters/words are used for other timezones. A to M go eastwards and N to Y go westwards. The letter J is omitted.
Code
Word
Offset
For example
Y
Yankee
UTC -12 hours
Pacific Ocean nations
X
Xray
UTC -11 hours
Pacific Ocean nations
W
Whisky
UTC -10 hours
Hawaii
V
Victor
UTC -9 hours
Alaska, Yukon
U
Uniform
UTC -8 hours
PST, Pacific USA, British Columbia
T
Tango
UTC -7 hours
MST, Mountain USA, Alberta
S
Sierra
UTC -6 hours
CST, Central USA, Saskatchewan, Manitoba, Central America
R
Romeo
UTC -5 hours
EST, Eastern USA, Ontario, Quebec
Q
Quebec
UTC -4 hours
Labrador, New Brunswick, Nova Scotia
P
Papa
UTC -3 hours
Greenland
O
Oscar
UTC -2 hours
Cape Verde
N
November
UTC -1 hour
Atlantic Ocean
Z
Zulu
same as UTC
Britain, Ireland, Portugal, Western Africa
A
Alpha
UTC +1 hour
Western Europe, Algeria, Nigeria, Angola
B
Bravo
UTC +2 hours
Finland, Eastern Europe, Balkans, Libya, Egypt, South Africa
C
Charlie
UTC +3 hours
Moscow, Eastern Africa, Ethiopia, Kenya, Tanzania
D
Delta
UTC +4 hours
Samara (Russia)
E
Echo
UTC +5 hours
Yekaterinburg (Russia)
F
Foxtrot
UTC +6 hours
Omsk (Russia), Bangladesh
G
Golf
UTC +7 hours
Krasnoyarsk (Russia), Western Indonesia
H
Hotel
UTC +8 hours
Irkutsk (Russia), China, Hong Kong, Philippines, Central Indonesia, Western Australia
I
India
UTC +9 hours
Yakutsk (Russia), Korea, Japan, Eastern Indonesia
K
Kilo
UTC +10 hours
Vladivostok (Russia), Papua New Guinea, Eastern Australia
