![]() ![]() ![]() ![]() This world clock is not just an ordinary time tool, but also an attractive decoration for your desktop and a useful collection of tools for your daily life. Sharp World Clock uses an integrated list of currently 357 IANA time zones, which is updated about 3 times a year.īesides being able to show as many clocks as you like, in every possible design and configuration, this world clock features several additional functions and components, like weather report, alarms, a time zone converter, a calendar widget and more. In the northern hemisphere daylight saving rules are in place during the months of summer, while in the southern hemisphere it is active during the winter. These rules have to be considered besides the UTC deviation, which makes it difficult to calculate the time difference of two cities, without having a dedicated world clock program. There are more time zones than you probably are aware of, ranging -12 to +12 hours from UTC and many of them follow complicated daylight saving rules. Sharp World Clock works offline on your desktop instead - you can have an always accurate world clock program, hidden by default if you like, but visible on demand to show the exact time in any major city on earth. See RaspiDigiHamClock.pdf for full details.What are the benefits of having an offline World Clock Software?Ī world clock on your Windows desktop can help you significantly with organizing your daily life, if you are dealing with people in different time zones.Įmployees must know the office hours for their collegues and customers in other countries, brokers have to know the opening hours of stock exchanges.Īnd for everybody else it is good and useful to know what time it is in a distant city, where a friend or relative is living, so you know when you can call him or her or expect an answer to an email.Īlthough it is easy to find websites that show the time in other time zones, it is inconvenient and time consuming to find the exact information you are looking for online, on an ad-cluttered website. This project does require soldering connectors or wires onto the Pi and/or the tm1637 modules. So each of the four displays could show a different time zone and in 12hr or 24hr format. You can also set the TIME ZONE that you would like to use instead of default Local time. The software is designed to let you use just UTC 24hr (typical hams) or different times on up to 4 different displays. I also wanted the clock to show the Local Time in 12hr and 24hr formats as well as UTC in 12hr and 24hr formats. I am planning another version of this clock to run on an Arduino Uno and a Real-Time Clock module, for when no WiFi is available and for more portable operation. It requires two wires to drive the display plus 5V + and Ground for a total of 4 wires.įor this particular project, I wanted the Raspi to get its time from NTP (Network Time Protocol) servers via the Internet. The TM1637 driven display has four 7 segment leds with a center colon “:” between two sets of digits. I decided to build a digital clock using the low-cost TM1637 4 digit displays and a Raspberry Pi Zero W instead of just a GUI clock. NOTE: This project uses Python2.7 and is not compatible with Python3.XĪmateur Radio Operators (aka HAM Radio) use 24 hour UTC (Universal Coordinated Time) for much of their operation. Raspberry Pi powered Digital Clock for Amateur Radio using TM1637 4 digit displays ![]()
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