I have two columns, DATE_A and DATE_B.
I need to find how much time is between the two dates.
Usually, I would use JULIANDAY() and subtract one date from another, but the output is null because of the "+0000" part.
Below you'll find an example of values contained in the two columns:
DATE_A - '2022-05-12 00:16:17.553 +0000'
DATE_B - '2022-06-02 00:02:01.158 +0000'
Please tell me what '+0000' means and how can I find the time elapsed between the two dates.
+0000 is the offset from UTC this time represents in hours and minutes. For example, here in the US Pacific it's daylight savings time and we're 7 hours behind UTC so we're -0700. 2022-05-12 08:00:00+0000 and 2022-05-12 01:00:00-0700 are the same point in time.
SQLite will accept a slightly different format. There has to be the : separator between hours and minutes.
2022-05-12 00:16:17.553 +00:00
^
You'll have to change the format. Use your programming language's date and time functions.
See "Time Values" in SQLite Date and Time Functions for valid formats.
I have a table Orders with Order_Date datatype is smalldatetime and my Order_Date Format is 01/10/2018 10:00:00 PM
Now I want to filter data between 01/10/2018 04:00:00 PM AND 02/10/2018 04:00:00 AM
What I tried
SELECT distinct(Order_No),Order_Date from Orders WHERE Order_Date BETWEEN '01/10/2018 04:00:00 PM' and '02/10/2018 04:00:00 AM'
This query is showing only 01/10/2018 Data but I want the data BETWEEN 01/10/2018 04:00:00 PM and 02/10/2018 04:00:00 AM
Is there any way to get the data from today 4PM To Next Day 4AM?
First off, sqlite does not have actual date/time types. It's a simple database with only a few types. Your smalldatetime column actually has NUMERIC affinity (See the affinity rules).
For Sqlite's builtin functions to be able to understand them, date and times can be stored as numbers or text; numbers are either the number of seconds since the Unix epoch, or a Julian day. Text strings can be one of a number of formats; see the list in the docmentation. All these have the additional advantage that, when compared to other timestamps in the same format, they can be properly sorted.
You seem to be using text strings like '01/10/2018 04:00:00 PM'. This is not one of the formats that sqlite date and time functions understand, and it doesn't sort naturally, so you can't use it in comparisons aside from testing equality. Plus it's ambiguous: Is it October 1, or January 10? Depending on where you're from you'll have a different interpretation of it.
If you change your timestamp format to a better one like (Assuming October 1) '2018-10-01 16:00:00', you'll be able to sort and compare ranges, and use it with sqlite functions.
I have to maintain an ASPX page that increments the date/time by passing a value in the querystring in this format:
636529536000000000 in reference to 31 January 2018
636530400000000000 in reference to 01 February 2018
The url format is: /reservas.aspx?t=636530400000000000
What is this date/time format?
It is the number of ticks where a tick is one hundred nanoseconds or one ten-millionth of a second. The number of ticks is measured since the epoch DateTime.MinValue (12:00:00 midnight, January 1, 0001). For example:
new DateTime(636529536000000000).ToString("F", CultureInfo.InvariantCulture)
outputs:
Wednesday, 31 January 2018 00:00:00
Could be a number of days from certain date, similar to julian date calculation:
https://en.wikipedia.org/wiki/Julian_day#Julian_date_calculation
Potentially incorporating the time as well?
Without details of the code I cant really advise from a provided value.
In ext-js ,
I have a data in millseconds ..eg;850248000000 for DOB field.
it is what i get from server side.
I need to convert this to Date format to be shown in a browser.
Time Zone at the Client Side should not affect the conversion.
Appreciate your help.
kp
The first thing to know would be what the time means(thanks #Teo). If it's epoch time in ms, the following might work for you
var d = new Date(850248000000)
console.log(d.toGMTString())
>>>Tue, 10 Dec 1996 20:00:00 GMT VM309:2
console.log(d.toLocaleString())
>>>12/10/1996 3:00:00 PM VM310:2
I'm using SQLite Database Browser to read information from a database containing the browsing history for Google Chrome. My current code that I am executing in the "Execute SQL" panel looks like this:
SELECT last_visit_time,url,title
FROM urls
WHERE url LIKE {PLACEHOLDER} AND title LIKE {PLACEHOLDER}
The stuff on the "WHERE" line is blocked out with {PLACEHOLDER} for privacy purposes. Now, I want to make it such that the data returned in the last_visit_time column is readable instead of a jumbled mess like 13029358986442901. How do I do this and how do I convert Chrome's timestamp to a readable format? How do I get it to order them (the returned rows) by last_visit_time?
The answer is given in this question: "[Google Chrome's] timestamp is formatted as the number of microseconds since January, 1601"
So for example in my sample history database, the query
SELECT
datetime(visit_time / 1000000 + (strftime('%s', '1601-01-01')), 'unixepoch', 'localtime')
FROM visits
ORDER BY visit_time DESC
LIMIT 10;
gives the results:
2014-09-29 14:22:59
2014-09-29 14:21:57
2014-09-29 14:21:53
2014-09-29 14:21:50
2014-09-29 14:21:32
2014-09-29 14:21:31
2014-09-29 14:16:32
2014-09-29 14:16:29
2014-09-29 14:15:05
2014-09-29 14:15:05
Using your timestamp value of 13029358986442901:
SELECT
datetime(13029358986442901 / 1000000 + (strftime('%s', '1601-01-01')), 'unixepoch', 'localtime')
the result is:
2013-11-19 18:23:06
visits.visit_time is in microseconds since January 1, 1601 UTC which is similar but not to be mistaken for Windows filetime which is the number of 100 nanoseconds since January 1, 1601 UTC.
Trivia: Why 1601?
I think the popular answer is because the Gregorian calendar operates on a 400-year cycle, and 1601 is the first year of the cycle that was active at the time Windows NT was being designed. In other words, it was chosen to make the math come out nicely. January 1, 1601 is origin of COBOL integer dates. It is also day 1 by ANSI date format. And if you speculate further according to ISO8601 which is the format in which it is in, ISO8601 works as far back as the year 1581. Prior to 1583 time was based on the proleptic Gregorian calendar which has 366 days per year. Perhaps they just rounded up to the next century.
downloads.start_time is the number of seconds since January 1, 1970 UTC
Trivia: Why 1970?
Well, I'm glad you asked.. It didn't used to be.. Originally it was January 1, 1971 but was later rounded to January 1, 1970. January 1, 1970 is considered to be the birth of UNIX.
It's worth noting that Firefox formats time as the number of microseconds since January 1, 1970 and the name for the format is PRTime
All of these are in an ISO 8601 EPOCH format.
Chromes Timestap is not Unixepoch!!
Chrome's base time is 01/01/1601 00:00:00. To calculate local time, Chrome time has to be converted to seconds by dividing by one-million, and then the seconds differential between 01/01/1601 00:00:00 and 01/01/1970 00:00:00 must be subtracted. There are two ways you can do this, viz SQLite itself and Unix.
SQLITE:
sqlite> SELECT strftime('%s', '1601-01-01 00:00:00');
-11644473600
DATE:
$ date +%s -d 'Jan 1 00:00:00 UTC 1601'
-11644473600
In both commands above, the "%s" represents unixepoch time. The commands calculate the number of seconds between unixepoch time (1970) and the subsequent date (Chrome time base, 1601). Note that the seconds are negative. Of course, this is because you have to count backwards from 1970 to 1601! With this information, we can convert Chrome time in SQLite like this:
sqlite> SELECT datetime((time/1000000)-11644473600, 'unixepoch', 'localtime') AS time FROM table;
Have a good read here.
Here is a compact expression to convert WebKit Time:
sqlite> SELECT datetime(time/1e6-11644473600,'unixepoch','localtime') AS time FROM table;
I'm new to coding so I'm not sure how you do it with sql, however I can show you a method in c#. I am hoping this would help someone.
If the time value given in the database is :
13029358986442901. Select only the first 11 digits 13029358986. You can convert this to time using :
DateTime dateTimeVar = new DateTime(1601,1,1).AddSeconds(time);
The answer here was : 19-11-2013 18:23:06
And this was without your time zone conversion.
You can substract 11644473600000 (1/1/1601 is -11644473600000 in unixepoch) and treat it as a regulat unix epoch timestamp this is assuming miliseconds.
milis: 11644473600000
seconds: 11644473600