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  2. Just to add. Get the seconds since epoch (Jan 1 1970) for any given date (e.g Oct 21 1973). date -d "Oct 21 1973" +%s. Convert the number of seconds back to date. date --date @120024000. The command date is pretty versatile. Another cool thing you can do with date (shamelessly copied from date --help).

  3. How to get the unix timestamp in C# - Stack Overflow

    stackoverflow.com/questions/17632584

    736. You get a unix timestamp in C# by using DateTime.UtcNow and subtracting the epoch time of 1970-01-01. e.g. Int32 unixTimestamp = (int)DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds; DateTime.UtcNow can be replaced with any DateTime object that you would like to get the unix timestamp for.

  4. Java 8 added a new API for working with dates and times. With Java 8 you can use. import java.time.Instant. ... long unixTimestamp = Instant.now().getEpochSecond(); Instant.now() returns an Instant that represents the current system time. With getEpochSecond() you get the epoch seconds (unix time) from the Instant.

  5. @Jkm: do NOT use mktime() with gmtime().mktime() accepts your local time but gmtime() returns UTC time-- your local timezone may and is likely to be different. "timestamp relative to your locale" is non-sense: POSIX timestamp does not depend on your locale (local timezone) -- it is the same value around the world. "seconds since epoch" is POSIX timestamp in most cases (even on Windows ...

  6. Get Unix timestamp with C++ - Stack Overflow

    stackoverflow.com/questions/6012663

    Using C++17 or earlier, time() is the simplest function - seconds since Epoch, which for Linux and UNIX at least would be the UNIX epoch. Linux manpage here. The cppreference page linked above gives this example: #include <ctime>. #include <iostream>. int main() {. std::time_t result = std::time(nullptr);

  7. Get Unix time in Python - Stack Overflow

    stackoverflow.com/questions/66393752

    If you don't want to depend upon the time.time() implementation and the (maybe) variable epoch, you can simply calculate the Unix timestamp yourself by getting the current datetime, and subtract the datetime of the epoch you want for the Unix timestamp (January 1st 1970), and get the seconds: NOTE: you might want to add the timezone information ...

  8. Timestamp: 1343846167. To get microseconds since the epoch, from C11 on, the portable way is to use. int timespec_get(struct timespec *ts, int base) Unfortunately, C11 is not yet available everywhere, so as of now, the closest to portable is using one of the POSIX functions clock_gettime or gettimeofday (marked obsolete in POSIX.1-2008, which ...

  9. The above answer is only correct if your database time zone is in UTC. Unix time is always in UTC. The correct answer that works on any database, regardless of configuration is: --Convert current time to epoch. select (cast (systimestamp at time zone 'UTC' as date) - date '1970-01-01') * 86400. from dual. --Convert hard-coded timestamp to epoch.

  10. For the number of seconds since the Unix epoch use date(1) as follows: date +'%s' For the number of days since the Unix epoch divide the result by the number of seconds in a day (mind the double parentheses!): echo $(($(date +%s) / 60 / 60 / 24))

  11. 11. I have the following C# method to get current unix epoch time stamp, public static long GetCurrentUnixTimestampSeconds() var unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc); return (long)(DateTime.UtcNow - unixEpoch).TotalSeconds; I need the same in SQL Server.