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Daylight saving time and time zone best practices [closed]

...hanged from the original value recorded. When scheduling future events, usually local time is preferred instead of UTC, as it is common for the offset to change. See answer, and blog post. When storing whole dates, such as birthdays and anniversaries, do not convert to UTC or any other time zone. ...
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Regular expression for a string that does not start with a sequence

...93C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.69...
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What is the difference between an int and a long in C++?

... Some compilers even have flags that allow you to modify the default size of int and long ie force them to 8 or 16 etc. See you compiler documentation for details. – Martin York Nov 7 '08 at 17:27 ...
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What is the difference between is_a and instanceof?

...ut PHP versions >= 5.3.9 now accept an optional third boolean argument $allow_string (defaults to false) to allow comparisons of string class names instead: class MyBaseClass {} class MyExtendingClass extends MyBaseClass {} // Original behavior, evaluates to false. is_a(MyExtendingClass::class,...
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C Macro definition to determine big endian or little endian machine?

... Code supporting arbitrary byte orders, ready to be put into a file called order32.h: #ifndef ORDER32_H #define ORDER32_H #include <limits.h> #include <stdint.h> #if CHAR_BIT != 8 #error "unsupported char size" #endif enum { O32_LITTLE_ENDIAN = 0x03020100ul, O32_BIG_END...
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Convert JSON style properties names to Java CamelCase names with GSON

...GSON to convert JSON data I get to a Java object. It works pretty well in all my tests. The problem is that our real objects have some properties named like is_online. GSON only maps them if they are named totally equal, it would be nice to have GSON convert the names to Java camel case isOnline. ...
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What happens to a declared, uninitialized variable in C? Does it have a value?

... In practice, they tend to just have some nonsensical value in there initially - some compilers may even put in specific, fixed values to make it obvious when looking in a debugger - but strictly speaking, the compiler is free to do anything from crashing to summoning demons through your nasal pass...
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How can I append a string to an existing field in MySQL?

I want to update the code on all my record to what they currently are plus _standard any ideas? 2 Answers ...
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How can I call a custom Django manage.py command directly from a test driver?

...ts. But if you by some reason cannot decouple logic form command you can call it from any code using call_command method like this: from django.core.management import call_command call_command('my_command', 'foo', bar='baz') ...
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Difference between . and : in Lua

... answered Feb 6 '11 at 2:55 BMitchBMitch 121k2020 gold badges274274 silver badges266266 bronze badges ...