There are total 195 officially declared countries in the world. 193 countries are United Nations members and others two are Observer states. Vatican city and Palestine are Observer states. Here are the list of the countries in alphabetical order.
There are 1440 minutes in a day. 24 x 60 =1440 Where 24 is number of hours in a day and 60 is number of minutes in an hour. Alternatively you can also calculate numbers of seconds in a day. 24x60x60= 86400 seconds in a day. There are seven days a week. Monday Tuesday Wednesday Thursday Friday Saturday Sunday