Given the following 2 dates in ISO format: getDay() returns 0 for the first one, and 1 for the second one. Note that it’s the same date, and only time is changed. I am assuming it returns the result after converting it to local time. Because of that behavior, my logic has some side-effects. Is there a w…
Tag: date
Convert Date in JavaScript (from a Python Dataset)
How do I edit the date format that gets returned from a dataset from Python via a Flask App in Javascript? It currently shows up as datetime, but I want it to show up as a custom date format. The best type of answer would help me to understand how to access those date values and create a custom date,
Convert a string to date in JavaScript
I have the following string and I want to convert it to Date ‘20220722T141444Z’ In C# I converted it by telerik’s DateParser library. Is there a way to convert it in JavaScript as well? Answer There are many questions on parsing timestamps. In this case, you can just get the parts as two dig…
Dates stuck in month loops
The dates go to one month either side and then get stuck in loops. Starting in June, it will go fine to end of July, or start of May, but then loop back to the end/start of those months instead of going further. globalDate is a React state defined const [globalDate, setGlobalDate] = useState(new Date()); Code…
Inconsistent behaviour with Javascript Date getTime() function
I am trying to make a filter based on hours for timestamps (in this example filter for all times after 8 am): I have debugged my way to finding out that I wouldn’t get a FALSE value in the 2nd IF, however I am at a loss as to why the .getTime() function returns vastly different values for my console
Why does Javascript’s Date.getDate() .setDate() behave so unpredictably?
Hobbyist coder here, and this problem is above my pay grade. I’m trying to build a dynamic html / css calendar, where the cells are filled in based on today’s date. I get today’s date, and then try to add days to fill in another 13 days (looping thru html elements.innerHTML). If I try to set…
Given a date, how can I get the previous Monday in UTC format regardless of time zone?
I am given a unix timestamp like this: 1655402413 and am needing to find find the midnight of the Monday (in UTC/GMT format) of the same week, regardless of what day it is or what time zone. I then need to represent that Monday as a unix timestamp and return it. The function I have is as follows: That functio…
Format current date time to “yyyy-MM-dd’T’HH:mm:ss.SSSZ” in Angular/Javascript/Typescript
Is there an easy way to format the date time in Angular/Typescript in “yyyy-MM-dd’T’HH:mm:ss.SSSZ” I got the current date by doing Can you please tell me what do I need to add here in the method to get in format of yyyy-MM-dd’T’HH:mm:ss.SSSZ Answer There are two ways to ach…
Date-fns Unexpected results when adding months
I am using date-fns for the first time in my project. I need to give user the ability to add a month to current date. I’m wondering how is this supposed to work with different length months? I tried different months with 30 and 31 days and I cannot make sense of it. If I add a month to July
Convert timestamp to “YY/MM/DD” with JS
I need to convert my “80814.89999999851” timestamp to a YY/MM/DD string. I started by doing this: var prova = info.originalEvent.timeStamp; //this path lead to: 80814.89999999851 var prova2 = new Date(prova); Now I have it as a datetime (if i’m not mistaken) but i don’t know how to kee…