time

[mat123]

how can i add one minute to the current time and store it as a variable

[T.C.]

Start by advising the format of your system time as returned when time/t is entered.

[ghostdog74]

again this topic, batch is never good dealing with time/date. Use vbscript

Code: [Select]

WScript.Echo DateAdd("n",1,Now)
or a good programming language eg Python

Code: [Select]

>>> import time,datetime
>>> t = datetime.datetime.now()
>>> t.ctime()
'Wed Mar 31 16:30:24 2010'
>>> back=datetime.datetime.fromtimestamp(time.mktime(t.timetuple())+60)
>>> back.ctime()
'Wed Mar 31 16:31:24 2010'



[BC_Programmer]

yes. as you can see python is clearly the winner here since it's four lines instead of 1.

Anyway for some reason I hardly ever use the DateAdd() function. Usually I just add the direct number equivalent (each whole numer is a day, an hour is 1/24, a minute is 1/24/60, etc. This is solely because I'm crazy. (Although I like to blame the fact that DateDiff was so filled with bugs for so many years and I just sort of grouped them all in the same department)

[ghostdog74]

yes. as you can see python is clearly the winner here since it's four lines instead of 1.

lol. sarcasm? anyway, the datetime module in Python has much more features than what vbscript Date functions provides. when you see it this way, clearly Python is the winner.

[BC_Programmer]

lol. sarcasm? anyway, the datetime module in Python has much more features than what vbscript Date functions provides, if you would like to know.

And they probably weren't broken for 5+ years, either.

(that's totally frank, not sarcastic, btw)

There is probably a faster way to do it in python, also. In fact, everything you have there could be combined (I think, just want to exercise python here):

Code: [Select]

datetime.datetime.fromtimestamp(time.mktime(datetime.datetime.now().timetuple())+60).ctime()

Seems a tad verbose. Oh well.

Actually, VBScript is miles ahead of Batch but at the same time it's date support really blows, solely because it's all handled in OLEAUT32. Now, it works for your everyday date and time calculations but it leaves out important and useful things like converting between time zones and or calculating UTC times, something that from a quick look at the documentation it appears that python probably does.

That being said the date and time support in the .NET framework is "fixed" and actually works properly with UTC dates and time zone information. It's a very rich framework much like the modules included with Python. For example, in powershell, the following would display the current time plus one minute.

Code: [Select]

[System.DateTime]::Now.AddMinutes(1)


[ghostdog74]

There is probably a faster way to do it in python, also. In fact, everything you have there could be combined (I think, just want to exercise python here):

sure, that's the beauty of objects. I prefer to break it down to intermediate steps for readability though

Actually, VBScript is miles ahead of Batch but at the same time it's date support really blows, solely because it's all handled in OLEAUT32. Now, it works for your everyday date and time calculations but it leaves out important and useful things like converting between time zones and or calculating UTC times, something that from a quick look at the documentation it appears that python probably does.

precisely. not just Python, Perl as well has very good featured datetime libraries for advance date ops

That being said the date and time support in the .NET framework is "fixed" and actually works properly with UTC dates and time zone information. It's a very rich framework much like the modules included with Python. For example, in powershell, the following would display the current time plus one minute.

i agree. powershell is probably the way to go for modern windows scripting.

[mat123]

can any of the codes store the new time in dos.

[greg]

Can any of the codes store the new time in batch.

Yes the following batch code assigns minute plus 1 to variable MM1:


C:\batch>type   addminute.bat

Code: [Select]

@echo OFF

REM time format 12:46:26.94

echo start time=%TIME%

set HH=%TIME:~0,2%

echo Hour=%HH%

set MM=%TIME:~3,2%

echo minutes=%MM%

set /a MM1=%MM% + 1

echo minutes plus 1=%MM1%
Output:

C:\batch> addminute.bat
start time=17:27:13.98
Hour=17
minutes=27
minutes plus 1=28
C:\batch>

[Sidewinder]

Not to be too obvious, but I think you need a plan B:

C:\batch> addminute.bat
start time=17:27:13.98
Hour=17
minutes=27
minutes plus 1=28
C:\batch>

What happens if the minutes value is 59?

Just asking. 

[Helpmeh]

Not to be too obvious, but I think you need a plan B:

What happens if the minutes value is 59?

Just asking. 

C:\batch> addminute.bat
start time=19:59:35.10
Hour=18
minutes=59
minutes plus 1=60
C:\batch>

[ghostdog74]

Yes the following batch code assigns minute plus 1 to variable MM1:

you cannot just add your minute like that. after 59, it should be 00, not 60 and then the hour incremented. you will need a more elaborate method.

[Geek-9pm]

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

d:\batch>WScript.Echo DateAdd("n",1,Now)
'WScript.Echo' is not recognized as an internal or external command,
operable program or batch file.

d:\batch>

Did I miss something?

EDIT:
IF minutes =59   ?
IF hours = 23  ?
IF days = 28 and month = February ??
IF mod(year/4) = 0 
IF you are on a ship and...
about to cross the international date line in 30 seconds   

[ghostdog74]

Did I miss something?

yes. that's a vbscript statement. so you cannot run it like that. you put that in a file and then run it using cscript.exe

Code: [Select]

cscript //nologo mydateadd.vbs


[greg]

Not to be too obvious, but I think you need a plan B:

What happens if the minutes value is 59?

C:\batch>type  addplanB.bat

Code: [Select]

@echo OFF

REM time format 12:46:26.94

echo start time=%TIME%

set HH=%TIME:~0,2%

echo Hour=%HH%

set MM=%TIME:~3,2%
if %MM%==59 Goto  adjust



echo minutes=%MM%

set /a MM1=%MM% + 1

echo minutes plus 1=%MM1%

if %MM1%==60 goto adjust
goto end
:adjust
set /a MM1=0
echo MM1=%MM1%
Pause
set /a HH=%HH% + 1
echo minutes plus 1=%MM1%
echo Hour=%HH%
:endOutput:

C:\batch> add2.bat
start time=19:59:31.87
Hour=19
MM1=0
Press any key to continue . . .
minutes plus 1=0
Hour=20

C:\batch>


C:\batch> add2.bat
start time=20:07:14.17
Hour=20
minutes=07
minutes plus 1=8
C:\batch>