Storing dates in persistent storage using UTC dates is a widely accepted best practice. But it's surprisingly complex using date data effectively if you want to let the user see dates and query data in their local time zone. Looking around I noticed that there's not a lot of comprehensive info on this topic, so I decided to take notes and write down some of the approaches I've used in this post.
The Time Zone Converter converts times instantly as you type. Convert between major world cities, countries and timezones in both directions.
EoS time changed. Time left is reduced and it will now shutdown at 1 am PDT (UTC-7) instead of 6pm.
Where to Enter Geolocation Data—Alternate Method. Add a new location to the locations.dat file to create a convenient preset geographic location and time zone setting. Once properly entered in the file, the new custom location appears in the Country: and Location: drop-down list boxes in the Model Info-Location Panel. Many countries utilize fractional hour time zones, e.g. Central Australia.
Current local time and geoinfo around the world. The Time Now is a reliable tool when traveling, calling or researching. The Time Now provides accurate (US network of cesium clocks) synchronized time and accurate time services around the world.
The National Institute of Standards and Technology - Time and Frequency Division maintains the standard for frequency and time interval for the United States, provides official time to the United States, and carries out a broad program of research and service activities in time and frequency metrology.
Windows expects the BIOS clock to be set to local time, and modifies it when you switch time zones. Linux generally expects the system clock to be set to UTC, and translates it to local time whenever you display it. Just a difference in defaults.
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community. UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry.