Php Subtract 30 Days From Date

[Yi Pressimone]

Iget a positive integer from an input field and now I want to subtract this integer from the current date with +year. (People type in their age and I want to calculate and save their approximate birthday).

Heck, if lazy, just give us :negate on all data types where the operator is a null function for data types for which it does not make sense (those types being Things, texts, dates, date ranges and date intervals).

I have been unable to find a post that succinctly states how to both add x number of days to today's date, or subtract x number of days from today's date. For example, I am working on a workflow that has a step to filter out records that are older than 90 days from a date column. So would the best way to accomplish this be to use a Filter Tool, and then add a formula? What should the formula be? Thanks!

I had to figure that one out, too, only minutes ago. With the Filter tool on your sheet and selected, look in the Functions tab in the left pane for the set of "DateTime" functions. Expand the "+" symbol and click on DateTimeAdd(dt,i,u). In the one-line box below it, you'll see an example of its use.

I was wondering, what if i need to add 2 or more X numbers of days to a date. I'm actually working on a workflor which calculate the terms of payments to our suppliers, those payments terms have differents number of days (example 90, 180, 60) and i need to sum those numbers of days to my date. The formula that you give us to know is perfect but only process a singular number of day like in the sample, which only process "-90"

Something like the below formula should work. I would note using days vs months in the datetimeadd function will yield different results based on how the formulas work. It looks like months gets you your expected results.

I'd advise against formating time to text whenever possible. If possible - keep the time as unix timestamp, only format it on output with fieldformat. That way any time manipulation is much easier (you just add/substract appropriate number of seconds) without the need of recalculating the date to/from the string representation.

I have a custom date/time field on one of the ci tables in servicenow. From a high level what I wanted to do is look at that date/time field and if it is x days or more from now then set the ci status to some value. What I was thinking is do a split on the date/time and just extract the date, then from there can I just subtract the number of days from that date?

Thanks thats useful. I realize now though that I need to take a date/time field, subtract x days from that, and then return a date/time field, to use in a gliderecord query, any idea how I would do that?

I have a requirement to create 21 tasks for different teams, I am using a workflow for this. These tasks all have to be completed at different times, before a set end date. I have read through all the different posting here and have tried most of them to no avail. Is it possible to use a GDT script in the create task script area to subtract days from the u_release_end_date field and then populate the u_release_plan_end field? Or does this have to be done in a business rule?

Suppose you want to adjust a project's schedule date by adding two weeks to see what the new completion date will be, or you want to determine how long a single activity will take to complete in a list of project tasks. You can add or subtract a number of days to or from a date by using a simple formula, or you can use worksheet functions that are designed to work specifically with dates in Excel.

Suppose that a bill of yours is due on the second Friday of each month. You want to transfer funds to your checking account so that those funds arrive 15 calendar days before that date, so you'll subtract 15 days from the due date. In the following example, you'll see how to add and subtract dates by entering positive or negative numbers.

I'm working on a course that involves sorting juveniles with one of the criteria being their age. I'm looking to display each child's age based on the current date, minus X number of days so that the child's birthday the relative no matter when a learner takes the course.

For example, I need a child that is a couple days short of 18 so I'm looking for JavaScript that will calculate the current date minus X number of days to produce a date of birth that would make the child a few days short of 18 (e.g., Feb 16, 2023 minus 6564 days).

// Output the result

console.log(formattedDate);

With this extra info... for these specific cases chatGPT is great...

This code first creates a Date object representing the current date and time. It then subtracts 18 days from this date by creating a new Date object with a timestamp that is 18 days earlier. The resulting date is then formatted as a string in the format "YYYY-MM-DD", which is commonly used for dates in web applications. Finally, the result is output to the console using the console.log() method.

I am trying to find the date that is less the # of days from another date. My issue is that I have a date (sold date) in one column, and # of days from date of loss to date of sale in another column - and I'm trying to calculate the date of loss. So Sold Date - # of days from loss to sale = Date of loss.

I have overthought this to far. I created a column subtracting the date column from the # of days column and it worked like a dream. Still don't know why the DATEADD column was cutting off at 01/01/2019, but I have found my own solution.

So, as ignorant and ineperienced as I am, I spent the last three days browsing these topics and still have to clue how to calculate (and display) a date into one field that is 180 days from a date that is input by the user.

If you're interested in an easy way of doing it I can recommend my own (paid-for) tool that allows you to quickly set up such calculations, without having to write any code at all. You can find it here: -apply-automatic-date.html

Date calculations are tricky because dates are not single valued entities. Actually though, they are. It's just that we view dates and times in a complicated way, using day, month, and year values. The idea behind any date calculation is to convert the date representation into a single number, then add or subtract a quantity, and finally convert it back to the date representation. The conversions are pretty complicated, but we don't have to worry about it because JavaScript provides us with conversion functions, util.scand and util.printd.

So, since I'm an idiot and I refuse to give up despite still not being able to figure it out, I did a screen cap of what I'm trying to do with the field names, etc, to try to see if I can figure out the part that goes in between the "..."

I have a time series table with a value field for each day. I need to create a expression to add a field showing the date from 4 days previous to the current date and the value from that earlier date. I see there is a DateAdd function but I kind of need the opposite of that. Not sure DateDiff will work because it's calculating the difference between two known dates. I know the current date and the difference, but the second date is unknown (and will change every day when the data updates). For example, 1) subtract 1/1/2020 - minus 4 days = 12/28/2019, 2) Find the value from 12/28/2019 and assign it to the expression to display in the pop up. Thanks for any ideas.

For example, to answer the questions, "What date will it be two weeks from today?" or "What date was it two weeks ago?", you can use the day calculator to add days to a date or subtract days from a date. However, it does not let you track the time. You can use the online stopwatch, online alarm clock, and online timer for these tasks.

For the calculation of weeks, months, or years between two dates, use the Count Days tabs. For the addition or subtraction of days, weeks, months, or years from a historical date, use the Add/Subtract tab.

Although you can manually count the number of days between two dates, the day calculator makes it easy and fast. If you manually calculate the duration between two dates, you need to take into account leap years. A typical year consists of 365 days, while a leap year consists of 366 days and occurs once every four years. Using the day calculator will save time because you don't have to worry about the complexities of the Gregorian calendar or work out the number of days in the month (which is sometimes 28, 29, 30, or 31).

You can also use the days from dates calculator to help you work out personal tasks. For example, if you want to return an item with a 30-day return window, you can use the days from dates calculator to work out when the last day is that you can return your item.

So I inherited this form from another "programmer" but I'm not tracking on some of the stuff. Basically a co-worker said, "Oh, that...yeah he found that on google. I have no idea what it means..." Yup, that's about as much light I can shine on it too. Substring madness is making my head explode. And what is floor()?

LeaveStartDate - Whatever day you start leave

LeaveEndDate - Leave Start Date + 14 days (for a theoretical 15 days leave) It's always 15 days, we're in the military, it's for rest and relaxation while deployed.

TravelDate - This is 2 days before your Leave Start Date

LeaveReturnDate - This is 3 days after your Leave End Date

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