Get the time value of an hour ago on Google sheets - google-sheets

I want to get an hour ago hour value of current time in google sheets.
For example
TEXT(NOW(),"DDHH")
returns current date+hour value (2500, if its 25th, midnight)
can I get 2423 instead using formula?
just putting -1 works for most of hours but fails at midnight (it returns 2499)

Try using
=TEXT(NOW()-1/24,"DDHH")
In date notation 1 is one day and one hour is 1/24 of a day.
It works for me:
(note that I use ; instead of comma as I have polish settings in my spreadsheet).

Adding -1 at the end of the formula will return 2499 because it will treat it like integer 2500 - 1. Adding -1 after NOW() will return 2400 because it will subtract 1 as 1 day. You can try this formula to subtract an hour.
=TEXT(NOW()-(1/24),"DDHH")

Related

TIme Separator in Google Sheets

I hope everyone reading this is doing well. I am making attendance sheets on Google Sheets that also calculates the salary of the person. It is entirely automated except for one part, the part that calculates salaries.
For that I need to separate the Hours and Minutes worked so that I can calculate the salary accurately based on 60 minutes instead of the first half being in hours and the second from a percentage of 100.
It coverts the hours into days and omits the remaining hours. Please assist. Thank you!
What it does
What it should do
HOUR() returns the hour component of a specific time, so it will always return a value between 0 and 23.
In Google Sheets, times are just numbers where 1 indicates 1 day. So a duration of hh:mm:ss means hh/24 + mm/24/60 + ss/24/60/60 which means hours_in_a_day + minutes_in_a_day + seconds_in_a_day. (You can see this if you format the cell as "Number")
So, if you want to extract the hours from a duration, you have to multiply it by 24 and take the INT().
=INT(B20*24)
Spreadsheet time values such was elapsed hours are in units of days. In your spreadsheet, salary is recorded per hour. To multiply the hours by the salary, first convert the salary per hour to salary per day, and then multiply by the elapsed hours, like this:
=n((B23 * 24) * B20)
The n() wrapper is there just to get the number format right. You can also leave it out and format the formula cell as Format > Number > Currency.
See this answer for an explanation of how date and time values work in spreadsheets.

In Google Sheets, how do I multiply a duration or interval constant? [duplicate]

This question already has answers here:
How to SUM duration in Google Sheets?
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Closed 2 months ago.
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I'm making calculations on production cost (in number of resources) and duration.
I have a process that takes 5 minutes. Using the Duration format, I would enter that as 00:05:00.
I want to queue up this process a certain number of times and calculate the total duration. The output should either be something like 16:35:00 or 5 02:15:00. A "d HH.mm.ss" format.
How, in Google Sheets, do I multiply a Duration by an integer to get a total Duration? To be clear, I am not doing a summation of a column of durations. I am taking a duration constant, such as 5 minutes or 25 minutes, and multiplying it by an integer representing the number of times the process will be run, consecutively.
All these attempts resulted in Formula Parse Error:
=(5*00:05:00)
=(112*00:05:00.000)
=(VALUE(C27)*00:05:00)
=MULTIPLY(VALUE(C27),00:05:00.000)
Well, blow me down. I came up with a workaround while I was trying different ways to fail. I assigned 00:05:00 to it's own cell with the Duration format, then referenced that cell in the formula.
I.E. =C27*J7 gives me 9:20:00 when C27 equates to 112 (it's a summation of it's own) and J7 is the cell holding 00:05:00.
Still doesn't give me days when it goes over 24 hours, and I'd rather have the duration value as a constant in the formula, but it's a step forward.
Would something like this work for you?? It's no longer a number, but if it's for expressing the amount in your desired format it may be useful:
=IF(ROUNDDOWN(W2*W3),ROUNDDOWN(W2*W3)&"d "&TEXT(W2*W3-ROUNDDOWN(W2*W3),"hh:mm:ss"),TEXT(W2*W3,"hh:mm:ss"))
Change the cell references, obviously
PS: If you want to have the value as a constant in your formula, you can try to change the cell reference with TIME function within your formula:
In both Excel and Google spreadsheet, DATE are represented in a number start counting from 1899/12/30,
which...
1 is equal to 1 day
1/24 is equal to 1 hour
1/24/60 is equal to 1 minute
1/24/60/60 is equal to 1 second
you can do like:
=TODAY()+1 which gives you tomorrow, or...
=TODAY()+12/24 which gives you "date of today" 12:00:00
and when you are done with the calculations, you can simply use a TEXT() to format the NUMBER back into DATE format, such as:
=TEXT(TODAY()+7 +13/24 +15/24/60,"yyyy-mm-dd hh:mm:ss")
will return the date of a week away from today at 01:15:00 p.m.
This date/time format doesn't requires a full date to work, you can get difference of two time format like this:
=TEXT(1/24/60 - 1/24/60/60,"hh:mm:ss")
since 1/24/60 is 1 min, and 1/24/60/60 is 1 second,
this formula returns 00:00:59, telling you that there is a 59 seconds diff. between 1 min and 1 sec.

Doing hourly rate calculations for hour more than 24

I am recording my time spent on a project in google excel sheet. There is a column which does addition of the recorded time and output total time to column say D40. The output time looks like <hoursspent>:<minutesspent>:<secondsspend>. For example 30:30:50 would mean that i have worked for 30 hours and 30 minutes and 50 seconds on a project.
Now, I was using this formula to calculate my total invoice
=(C41*HOUR(D40))+(C41*((Minute(D40)/60)))+(C41*((SECOND(D40)/3600)))
Where C41 cell contains my hourly rate (say $50).
This is working fine as long as the numbers of hours that i have worked are less than 24. The moment my numer of hours go above 24. The Hour function return the modulus value i.e., HOUR(30) would return 6.
How can I make this calculation generic in a way that it oculd calculate on more than 24 hours value too.
Try
=C41*D40*24
and change formet on the result as $
one hour is part of a day, as you know 1/24th of a day, that's why you could multiply by 24 to get hours, and then multiply it by the rate
Try below formula-
=SUMPRODUCT(SPLIT(D40,":"),{C41,C41/60,C41/3600})
When you store a value as HH:mm:ss into an Excel sheet, it automatically formats it as a Time, so it makes sense that HOUR modulos by 24.
Which is why you can simply ignore it. If you have a cell that is formatted as currency (FORMAT > Math > Currency) or any other normal Number-like format, then you can see, if you perform a numerical operation like multiplication, that it stores times like "30:30:50" as if it were a TIMEVALUE with a value over 1. Simply multiply that by 24, and then by your hourly rate, and you'll get your value, i.e,
=D40 * C41 * 24 :
Just replace HOUR(D40) with INT(D40)*24+HOUR(D40)

EOMONTH returns the 1st day of the next month for months with 30 days

When I use the formula below the results of the EOMONTH function
returns the start of the next month for any month with 30 days instead of the last day of the specified month. The month and years are correct, so I'm pretty sure it's EOMONTH when used in another function.
For example,the results in B3 should be "11/31/1965" but it returns "12/1/1965".
=DATE(YEAR(B2),MONTH(B2)+6,DAY(TEXT(EOMONTH(MONTH(B2)+6,0))))
I have tried subtracting a day, but it returns the end-of-month -1 for months with 31 days (30). So I have the same problem in the other case.
I have also used IFS() to account for months with 30 days, and it miscalculates the date the same way.
=IFS( MONTH(B2)+6 = 4,DATE(YEAR(B2),MONTH(B2)+6,DAY(EOMONTH(MONTH(B2)+6,0))-2) ,
MONTH(B2)+6 =
6,DATE(YEAR(B2),MONTH(B2)+6,DAY(EOMONTH(MONTH(B2)+6,0))-2) ,
MONTH(B2)+6 =
9,DATE(YEAR(B2),MONTH(B2)+6,DAY(EOMONTH(MONTH(B2)+6,0))-2) ,
MONTH(B2)+6 =
11,DATE(YEAR(B2),MONTH(B2)+6,DAY(EOMONTH(MONTH(B2)+6,0))-2) ,
TRUE ,DATE(YEAR(B2),MONTH(B2)+6,DAY(EOMONTH(MONTH(B2)+6,0)) ) )
The EOMONTH function by itself where I just pass in the date as a string works correctly (column F).
Any Idea on what I'm doing wrong?
Thanks in advance.
Yes, as #player0 has explained, you can't just add something to a month and feed it into eomonth. Try putting
=eomonth(month(B2)+6,0)
into B3 (formatted as a date).
You get
1/31/1900
Why? month(b2)+6 gives 11 (which is just a number). Dates in google sheets are represented as days since 12/31/1899. So 11 formatted as a date gives 1/11/1900. Applying eomonth to that gives the last day of January 1900, which is the 31st. Feeding that into your formula would give 11/31/65, but that date doesn't exist, so you get 12/1/65.
If you want to go forward 6 months and then get the last day of the month, you need
=eomonth(date(year(B2),month(B2)+6,1),0)
You can also use the Edate function, which does not roll over into the first day of the next month:
=eomonth(edate(B2,6),0)
EOMONTH does not understand MONTH. instead, it converts it into date. to use EOMONTH you need to supply it with valid date
=EOMONTH(B2, 0)

Time differance "in mins" using current date and time stamp

How do I work out the duration from the current date and time to cell A1
A B Results
+-----------------+-------------------------------------------------------+--------------+
1 |20-01-07 07:27:27|=TIME(HOUR(NOW()),MINUTE(NOW()),SECOND(NOW()))-C2 | 5:31:57 |
+-----------------+-------------------------------------------------------+--------------+
2 |20-01-07 07:27:27|=TIME(HOUR(NOW()),MINUTE(NOW()),SECOND(NOW()))-C2*1440 | -56307326.9 |
+-----------------+-------------------------------------------------------+--------------+
I have tried this method above but it seems to not use the DATE.
Is there a way I can get it to include the date and also get it to display in minutes
https://docs.google.com/spreadsheets/d/15EqEkdzcPntTV1K0EfOW_BPcq7zFDNqOMNwEFdQuDIE/edit#gid=0
use:
=ARRAYFORMULA(IF(A2:A, TEXT(NOW()-A2:A, "[m]")*1, ))
=now() - A1 will give you the number of days between the date in A1 and now.
The decimal part of the number if a fraction of a day.
So if you need minutes, try the formula :
=(now()-A1)*(24*60)
The output will most likely have decimal places which is the number of seconds as fractional minutes.

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