i got the answer what i am expecting but can u explain me (Time.now - Time.mktime(*ParseDate.parsedate((t.created_at).to_s))) what exactly this line does" Time.mktime(*ParseDate.parsedate((t.created_at).to_s)) "
On Wed, Aug 29, 2012 at 2:36 PM, Swati Verma <[email protected]>wrote: > You can do > > (Time.now - Time.mktime(*ParseDate.parsedate((t.created_at).to_s))) > > > On Wed, Aug 29, 2012 at 12:18 PM, keerthi <[email protected]>wrote: > >> @colin here i found in console >> >> >> @bio = Biometric.find(36457) >> => #<Biometric id: 36457, rfid: 0, userid: 3, date_time: "2012-08-29 >> 09:30:00", checkin_checkout: nil, forget: nil, reason: nil, entered_by: >> nil, created_at: "2012-08-29 09:30:00", updated_at: "2012-08-29 09:30:00", >> RealCheckIn: nil, MACHINENO: nil> >> >> @first = @bio.date_time.to_i >> => 1346232600 >> >> @now = Time.now >> => Wed Aug 29 12:13:46 +0530 2012 >> >> @time_now = @now.to_i >> => 1346222626 >> >> @time_now - @first >> => -9974 >> >> @first = @bio.date_time >> => Wed, 29 Aug 2012 09:30:00 UTC +00:00 >> with out converting to to_i >> >> >> @now = Time.now >> => Wed Aug 29 12:16:48 +0530 2012 >> with out converting to_i >> >> as i found was my date from database is in UTC format and when it comes >> to Time.now its not UTC >> >> >> how can i solve it >> >> Cheers >> >> >> >> >> On Tue, Aug 28, 2012 at 9:28 PM, Colin Law <[email protected]>wrote: >> >>> On 28 August 2012 16:40, sameena Khan <[email protected]> >>> wrote: >>> > @colin if i have two timings9:30 PM and 10:52 i got correct output >>> here it >>> > is 10 hours : 38mins >>> > and if i give Time.now as one input and 10:30 AM as another input i >>> got 2 >>> > hours : mins >>> >>> The best thing is to put in some diagnostic code and work out what is >>> happening. Remember Time.now is not a time of day it is a date and >>> time. Hopefully your other times are also full date and time objects. >>> >>> Colin >>> >>> > >>> > >>> > i dont think it is timezone issue because if there are two fixed >>> inputs and >>> > if i subtract them with my code i get the correct output the only >>> issue is >>> > with Time.now as a input i guess. i wanna calculate the working hours >>> with >>> > mins of an employee. As i explained before if the employee checkin and >>> > checkout time is there i can able to calculate it and if i wanna show >>> right >>> > from his checkin until he checkout every min of his working hours and >>> mins i >>> > have to go for Time.now as another input. >>> > >>> > On Tue, Aug 28, 2012 at 8:05 PM, Colin Law <[email protected]> >>> wrote: >>> >> >>> >> On 28 August 2012 15:18, Khan <[email protected]> wrote: >>> >> > Hey everyone >>> >> > >>> >> > i am trying to subtract two different times.i am getting >>> >> > right >>> >> > when i have two fixed times. >>> >> > here is my code >>> >> > >>> >> > >>> >> > def hour_min(last,first) >>> >> > >>> >> > difference = last - first >>> >> > seconds = difference % 60 >>> >> > difference = (difference - seconds) / 60 >>> >> > minutes = difference % 60 >>> >> > difference = (difference - minutes) / 60 >>> >> > hours = difference % 24 >>> >> > >>> >> > return hours,minutes >>> >> > >>> >> > end >>> >> > if last =9:30 PM and first = 10:52 i get after subtraction 10 hours >>> : 38 >>> >> > mins but the problem is with Time.now >>> >> > if last = Time.now and first = 10:30 am it is give improper output >>> >> > >>> >> > >>> >> > >>> >> > this is my view >>> >> > <% hour_min = hour_min(Time.now.to_i,cin.first.to_i)%> >>> >> >>> >> You should not need to call to_i, just pass in the times, the >>> >> difference of two times is the difference in seconds. >>> > >>> > >>> > If i don't call with to_i the output will be with decimal(i.e., 3.o >>> hours ) >>> > to convert them i went with to_i >>> >> >>> >> >>> >> > <%="#{hour_min[0]}Hour : #{hour_min[1]}Min"%> >>> >> > >>> >> > My problem is if i have two fixed timings i am getting correct but >>> when >>> >> > i >>> >> > have to calculate with Time.now i am getting wrong answer can any >>> one >>> >> > help >>> >> > me out >>> >> >>> >> Have a look at the Rails Guide on debugging which will show you >>> >> techniques that can be used to debug the code. I would start just by >>> >> running the console (rails c) and try calling your method with various >>> >> values and see what happens. You can use puts in the method to print >>> >> intermediate results and see what is happening. >>> >> >>> >> What results are you getting? Is it a number of hours out? If so >>> >> then I guess it is a time zone issue. >>> >> >>> >> Colin >>> >> >>> >> -- >>> >> You received this message because you are subscribed to the Google >>> Groups >>> >> "Ruby on Rails: Talk" group. >>> >> To post to this group, send email to >>> [email protected]. >>> >> To unsubscribe from this group, send email to >>> >> [email protected]. >>> >> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >>> >> >>> > >>> > -- >>> > You received this message because you are subscribed to the Google >>> Groups >>> > "Ruby on Rails: Talk" group. >>> > To post to this group, send email to [email protected] >>> . >>> > To unsubscribe from this group, send email to >>> > [email protected]. >>> > For more options, visit https://groups.google.com/groups/opt_out. >>> > >>> > >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Ruby on Rails: Talk" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "Ruby on Rails: Talk" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. 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