As far back as commit c64b9b8 (git 0.99, May 2005), time has always been referred as <date> Date in ‘seconds since epoch‘ commit 6eb8ae0 defines date as an unsigned long since April 2005. TLDR; date before unix epoch can be stored, but cannot be sure to be correctly represented. But that has evolved since 2014 … Read more
git version 1.8.4 added an –author-date-order argument to git log; according to the release notes, “the output is topologically sorted and commits in parallel histories are shown intermixed together based on the author timestamp.”
I always use something like the following: public static String GetTimestamp(this DateTime value) { return value.ToString(“yyyyMMddHHmmssfff”); } This will give you a string like 200905211035131468, as the string goes from highest order bits of the timestamp to lowest order simple string sorting in your SQL queries can be used to order by date if you’re … Read more
Update: This answer is outdated since matplotlib version 3.5. The plot function now handles datetime data directly. See https://matplotlib.org/3.5.1/api/_as_gen/matplotlib.pyplot.plot_date.html The use of plot_date is discouraged. This method exists for historic reasons and may be deprecated in the future. datetime-like data should directly be plotted using plot. If you need to plot plain numeric data as … Read more
You could get the values in your header row, and search for the required header in those values using indexOf(). function onEdit(event) { var timezone = “GMT-4”; var timestamp_format = “yyyy-MM-dd HH:mm:ss”; var sheet = event.source.getActiveSheet(); // note: actRng = the cell being updated var actRng = event.source.getActiveRange(); var index = actRng.getRowIndex(); var headers = … Read more
There is an easier way: In [250]: df[‘Date’]=pd.to_datetime(df[[‘year’,’month’,’day’]]) In [251]: df Out[251]: id lat lon year month day Date 0 381 53.3066 -0.54649 2004 1 2 2004-01-02 1 381 53.3066 -0.54649 2004 1 3 2004-01-03 2 381 53.3066 -0.54649 2004 1 4 2004-01-04 from docs: Assembling a datetime from multiple columns of a DataFrame. The … Read more
Have you tried setting the datestyle setting of the server? SET datestyle=”ISO,DMY”; You are using the psql meta-command \copy, which means the input file is local to the client. But it’s still the server who has to coerce the input to matching data-types. More generally, unlike the psql meta-command \copy which invokes COPY on the … Read more
For hours: function get_offset_hours($hours) { return date(‘Y-m-d H:i:s’, time() + 3600 * $hours); } Something like that will work well for hours and days (use 86400 for days), but for months and year it’s a bit trickier… Also you can also do it this way: $date = strtotime(date(‘Y-m-d H:i:s’) . ‘ +1 day’); $date = … Read more
to_timestamp_tz() function with at time zone clause can be used to convert your string literal to a value of timestamp with time zone data type: SQL> with t1(tm) as( 2 select ‘2013-11-08T10:11:31+02:00’ from dual 3 ) 4 select to_timestamp_tz(tm, ‘yyyy-mm-dd”T”hh24:mi:ss TZH:TZM’) 5 at time zone ‘+4:00’ as this_way 6 , to_timestamp_tz(tm, ‘yyyy-mm-dd”T”hh24:mi:ss TZH:TZM’) 7 at … Read more
Pass it to the Date constructor. > var date = new Date(‘2012-04-15T18:06:08-07:00’) > date Mon Apr 16 2012 04:06:08 GMT+0300 (EEST) For more information about Date, check https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date.