Date/Time to Second

I am trying to create a custom timestamp with the node Date/Time to Second. I am not sure why, but regardless of what input I feed it, I always get 00:00:00.000 PM MM/DD/YYYY. Why is that? See code.
Kudos and Accepted as Solution are welcome!
Attachments:
timestamp.PNG ‏35 KB

My guess is in the month part.
If you enter a month <1 or >12 the 'Date/Time to Seconds' will return what you are seeing.
Now is the right time to use %^<%Y-%m-%dT%H:%M:%S%3uZ>T
If you don't hate time zones, you're not a real programmer.
"You are what you don't automate"
Inplaceness is synonymous with insidiousness

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"Date/Time To Seconds" Function does not respond to "fractional second" input

The "Date/Time To Seconds" function (contained in the Fuctions\Programming\Timing - Palette) does not respond to the "fractional second" input (see attached example).
Reimar Spohr
Attachments:
Date-Time To Seconds VI Example.png ‏18 KB

Instead of creating a new post, you should have posted this in the original thread, where people already tried to help you. Please keep the discussion in that thread.

Convert labview date/time to excel date/time

How do I convert the "seconds since 1904" from the function "Get Date/Time in Seconds" to an MS Excel date/time format? The application runs in the Solaris environment.

hi, I am not sure about Solaris env.
Maybe this will help in one way or another.
Regards
ian.f
Sg/My
Ian F
Since LabVIEW 5.1... 7.1.1... 2009, 2010
依恩与LabVIEW
LVVILIB.blogspot.com
Attachments:
GetDatenTime_to_File.vi ‏48 KB

"Translate" current system time into seconds.

I actually have two doubts/questions:
1- I need to create a timer that translates into seconds the current time of the system (i.e. 10:00 = 36,000s and 00:00 a.m. = 0 s) , I've tried this by using the format date/time string function but I can't separate the time from the date, anyone has any ideas on how to do this?
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Thanks for you help!
Solved!
Go to Solution.

magb321 wrote:
I actually have two doubts/questions:
1- I need to create a timer that translates into seconds the current time of the system (i.e. 10:00 = 36,000s and 00:00 a.m. = 0 s) , I've tried this by using the format date/time string function but I can't separate the time from the date, anyone has any ideas on how to do this?
So your time is relative to midnight? I'm assuming you reset once you pass midnight? If so, you can use the Get Date/Time In Seconds and the Seconds to Date/Time to get a cluster that you can easily peel off:
2- Also, this is the first time I'm going to be using a daq-6008 on a separate computer which doesn't have LABView installed, for this I'm supossing all I need to do is install the driver on this other computer and with the .exe file of the program I'm creating should be enough right? In the sense that the daq will still work apropiateley without the need of installing LABView.
The target computer will also need the LabVIEW Run-Time Engine (to run your app) and DAQmx (driver for the 6008) installed.
Message Edited by smercurio_fc on 05-18-2010 11:34 PM
Attachments:
time.PNG ‏2 KB

Date Picker with seconds?

Hi everybody,
In my APEX application, for a particular form element, I need to setup a date picker with date + time with seconds.
Unfortunately, in the differents masks that can be used for date picker element, there is not support of seconds.
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Yes, this is one of the solutions, but of course it will require to create these additional elements...
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Thanks,
Romain.

Time in seconds from Jan 1st, 1970?

Hi,
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Alex

You can determine that from LabVIEW itself.
You can get the time in seconds from Jan 1st, 1904 to Jan 1st, 1970 by using "Date/Time to Seconds", locate in the Time & Dialog functions menu. The result is an unsigned long number.
As you know, to get the time in seconds from 1904 until now, use "Get Date/Time in Seconds". The output is a double number, so you may want to convert that result into an unsigned long.
The time in seconds from 1970 until now is:
(1970 to now) = (1904 to now) - (1904 to 1970)
Best regards;
Enrique
www.vartortech.com

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Is this know issue in Sharepoint2013 excel services as same code is working fine with Sharepoint2010.
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Convert date/time to a value in second

Hello,
I want to convert a basic date time variable into a numeric one corresponding to the time (in second) passed since January,1,1970 in order to put it in a SQL statment as a criteria.
Is someone able to help me ?
Regards

If you have an java.util.Date object you can call getTime() method on it. It will return milliseconds. Just divide it on 1000. Here is example code:
java.util.Date date = new java.util.GregorianCalendar(2001, 7, 6).getTime();
long seconds = date.getTime() / 1000;
//Your code
Best regards, Alex.

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Message was edited by: Ramón G Castañeda

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When I run this VI "Waveform Time to Date Time String" in LabView 7.0 it will not pass decimals of seconds. From decimals of inputline. If i disconnect the input to the subVI "Get Date/Time string vi" it will work propperly, it also doses if I reconnect it. I use LabViev 7.0.
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Attachments:
Waveform_Time_to_Date_Time_String.vi ‏18 KB

Hello.
I checked your vi and it fails as you state.
It runs fine if: 1 Convert number to timestamp OR
2 Wire a constant to want seconds?
In labview 7.1, no problems.
I think is a job for NI engeniers.
Hope it helps
Alipio
"Qod natura non dat, Salmantica non praestat"

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Date / Time System fields - inconsistent

This is a weird one...please bear with me
Before I begin...note that this is not a problem that is difficult to fix, I'm just interested in better understanding why the system fields are behaving the way they are.
We have 20 or so programs that use a function module to create a file header that includes a date/time stamp. The programs also place a trailer with a date/time stamp that should match the one in the header. However, the programmer used different system fields (after a GET TIME statement) to create the date/time stamp in the trailer. On occasion, the date/time stamp comes out different.
Here's the code (sry about all caps):
GET TIME.
CONCATENATE SY-DATUM SY-UZEIT INTO BATCHID.
CALL FUNCTION 'Z_YADAYADA'
       EXPORTING
            FILE_ID              = P_FILEID
            REFRESH_TYPE         = P_REFTYP
            START_PERIOD         = START_PER
            END_PERIOD           = END_PER
       IMPORTING
            STRING255            = OUTPUTSTRING
       EXCEPTIONS
            INVALID_REFRESH_TYPE = 1
            INVALID_BATCH_ID     = 2.
...sy-subrc check...
TRANSFER OUTPUTSTRING TO P_FILE1. <--header output
CONCATENATE L_TRL BATCHID COUNT T_TOTAL SPACE
              INTO OUTPUTSTRING SEPARATED BY L_DEL.
CONDENSE OUTPUTSTRING NO-GAPS.
TRANSFER OUTPUTSTRING TO P_FILE1. <--trailer output
inside function module *****
CONCATENATE: SY-DATLO SY-TIMLO INTO DATESTAMP,
               SY-SYSID SY-MANDT INTO MACHINE_NAME.
CONDENSE: DATESTAMP, MACHINE_NAME NO-GAPS.
CONCATENATE C_HDR DATESTAMP FILE_ID MACHINE_NAME
              SY-CPROG ' ' REFRESH_TYPE START_PERIOD
              END_PERIOD DATESTAMP
              INTO STRING255 SEPARATED BY '~'.
CONDENSE: STRING255 NO-GAPS.
You can see that the function uses SY-DATLO and SY-TIMLO for creation of the header, while SY-DATUM and SY-UZEIT are used for the trailer. What's wierd is that sometimes the trailer has a date/time stamp that is 1 second <b>greater</b> than the header, despite the fact that it is stored in the BATCHID variable <b>before</b> the header is created.
Any help, references, explanations greatly appreciated (and rewarded with points)
BMV

Hi Brian
Here is the related part from the weblog of ABAP expert Horst Keller. Hope it may help. For the full document, you can visit <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.sdn.wcm.compound.docs/library/uuid/f1391fc3-0301-0010-d384-fccd036f1c67">here</a>.
The values of all system fields in this table are implicitly set when the program is started, every time a screen layout of a screen is sent, and when the internal mode is set. The GET TIME command explicitly updates the system fields, except for sy-dayst, sy-fdayw and sy-tzone.
With the exception of sy-datlo and sy-timlo, all system fields refer to the local date and time of the current SAP system. The ABAP runtime environment clock is synchronized with the database server clock at regular intervals in order to calculate the local time of the SAP system. During the synchronization process, the ABAP runtime environment clock is set to the database server clock. Because this happens on all application servers in an SAP system, the ABAP runtime environment clock is synchronous with the clocks on all other application servers and with the database system clock, and thus shows the local time of the entire SAP system. The time zone on which the local time of an SAP system is based is the only entry in the database table TTZCU.
The content of sy-zonlo is taken from the user master record of the current user. The values of sy-datlo and sy-timlo are calculated from sy-datum and sy-uzeit and from the time zone of the SAP system for the time zone in sy-zonlo. If the user master record does not contain a time zone, or if it contains an invalid or an inactive time zone, sy-datlo and sy-timlo are set to the values of sy-datum and sy-uzeit. All valid time zones are defined in table TTZZ.
Is't the naming of sy-datum and sy-uzeit really geeky?
Time Stamps
The above system fields for date and time are not sufficient for many requirements of determining unique points in time: They represent local times and the values are measured in seconds. For more exact date and time determination, you use time stamps.
A time stamp represents date and time in the form YYYYMMDDHHMMSS. YYYY is the year, MM the month, DD the day, HH the hour, MM the minutes and SS the seconds. There is a short form and a long form. In the long form, the format specified above additionally contains 7 decimal places for fractions of seconds, which allows for an accuracy of up to 100 ns. The maximum time resolution depends on the operating system of the application server and may be less.
A valid time stamp must contain values whose date and time specifications before the decimal separator correspond to valid values for the data types d and t. Time stamps in this form are always considered as UTC (Universal Time Coordinated, basis for calculating worldwide time specifications; the UTC reference time is based on Greenwich Mean Time, GMT, but is not a time zone; it has no daylight saving time or summer time) time stamps when processed with the corresponding statements. You use the statement GET TIME STAMP to create a time stamp that represents the current UTC reference time.
Regards
*--Serdar <a href="https://www.sdn.sap.com:443http://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.sdn.businesscard.sdnbusinesscard?u=qbk%2bsag%2bjiw%3d">[ BC ]</a>

Get date-time from .lvm

With Labview I've created a .lvm file with 6 colums of data. The .lvm also contains a x value (+1 for each row) so i'm saving 1 row of data every second.
If I plot the data in Diadem the X-axis shows up as relative time, but I want to see the absolute time (date+time). All the information is to do this is present in the header of the .lvm, but I cant find the setting to do this!
Thank in advance!

Hi Inspectation,
OK, I got your *.LVM file, and all is clear. The problem in this case is that DIAdem 2010 and prior versions are hiding the absolute date/time property of the waveform from you in an attempt not to confuse you. But since that's exacty what you want to see, this approach ends up being very confusing indeed, even though it works great for most of our customers.
The good news is that the LVM DataPlugin is parsing the absolute date/time property for each channel, and that property is being loaded (invisibly) into the Data Portal, so you can run a VBScript to fish out that information and create a new DateTime channel to plot the data against on the X axis:
OPTION EXPLICIT
Dim GroupIdx, ChanIdx
GroupIdx = GroupDefaultGet
IF GroupChnCount(GroupIdx) > 0 THEN
ChanIdx = CNoXGet(GroupIdx, 1)
Call WfmToDateWfm(ChanIdx, "DateTime")
Call ChnRenumber
END IF
Function WfmToDateWfm(Channel, DateTimeChanName)
Dim ChnStartTime, OffStartTime, ChnDeltaTime, RelStartTime, RelStopTime, DateTimeChannel
IF ChnPropValGet(Channel, "waveform") <> "Yes" THEN Exit Function
ChnStartTime = CDbl(CDate(ChnPropValGet(Channel, "wf_start_time")))
OffStartTime = ChnPropValGet(Channel, "wf_start_offset")
ChnDeltaTime = ChnPropValGet(Channel, "wf_increment")
RelStartTime = 24*3600*(Trunc(ChnStartTime) + 693958 + Abs(Frac(ChnStartTime))) + OffStartTime
RelStopTime = RelStartTime + ChnDeltaTime*(ChnLength(Channel) - 1)
IF DateTimeChanName = "" THEN DateTimeChanName = ChnName(Channel) & " DateTime"
Call GroupDefaultSet(ChnGroup(Channel))
DateTimeChannel = ChnLinGen("/" & DateTimeChanName, RelStartTime, RelStopTime, ChnLength(Channel))
ChnFormat(DateTimeChannel) = "Time"
Call ChnMove(DateTimeChannel, ChnGroup(Channel), ChnIndex(Channel))
WfmToDateWfm = DateTimeChannel
End Function ' WfmToDateWfm()
Brad Turpin
DIAdem Product Support Engineer
National Instruments

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