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How to extract epoch from LocalDate and LocalDateTime?
...is helpful is the field EPOCH_DAY which counts the elapsed days since 1970-01-01. Similar thoughts are valid for the type LocalDate (with even less supported fields).
If you intend to get the non-existing millis-since-unix-epoch field you also need the timezone for converting from a local to a glob...
Reading an Excel file in python using pandas
... Tid dummy1 dummy2 dummy3 dummy4 dummy5 \
0 2006-09-01 00:00:00 0 5.894611 0.605211 3.842871 8.265307
1 2006-09-01 01:00:00 0 5.712107 0.605211 3.416617 8.301360
2 2006-09-01 02:00:00 0 5.105300 0.605211 3.090865 8.335395
3 2006-09-01 03:...
Convert HH:MM:SS string to seconds only in javascript
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This can be done quite resiliently with the following:
'01:02:03'.split(':').reduce((acc,time) => (60 * acc) + +time);
This is because each unit of time within the hours, minutes and seconds is a multiple of 60 greater than the smaller unit. Time is split into hour minutes a...
iPhone: How to get current milliseconds?
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EI Captain v2.0
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answered Dec 11 '08 at 1:39
codelogiccodelogic
...
What's the fastest way to merge/join data.frames in R?
...child sys.child
3 data.table 1 0.34 1.000000 0.31 0.01 NA NA
2 plyr 1 0.44 1.294118 0.39 0.02 NA NA
1 merge 1 1.17 3.441176 1.10 0.04 NA NA
4 sqldf 1 3.34 9...
How to use greater than operator with date?
...se backtick instead
SELECT * FROM `la_schedule` WHERE `start_date` > '2012-11-18';
SQLFiddle Demo
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When to use single quotes, double quotes, and backticks in MySQL
...ts DATE and DATETIME literal values to be single-quoted as strings like '2001-01-01 00:00:00'. Consult the Date and Time Literals documentation for more details, in particular alternatives to using the hyphen - as a segment delimiter in date strings.
So using your example, I would double-quote the P...
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...current system timezone):
$ date +%s
1318996912
$ irb
ruby-1.9.2-p180 :001 > require 'date'
=> true
ruby-1.9.2-p180 :002 > Time.at(1318996912).to_datetime
=> #<DateTime: 2011-10-18T23:01:52-05:00 (13261609807/5400,-5/24,2299161)>
Further update (for UTC):
ruby-1.9.2-p180...
How do I convert seconds to hours, minutes and seconds?
...multiple days: str(datetime.timedelta(seconds=60*60*24+1)) = '1 day, 0:00:01'
– hyprnick
Dec 29 '14 at 15:37
4
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Javascript library for human-friendly relative date formatting [closed]
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I wrote moment.js, a date library that does this. It's about 5KB (2011) 52KB (2019), and works in browsers and in Node. It's also probably the most popular and famous date library for JavaScript.
It supports timeago, formatting, parsing, querying, manipulating, i18n, etc.
Timeago (relative...