date

问题 i need to get in this format "2015-10-03" , but im getting like this "10/3/2015" and "10/3/2015 12:00:00 AM" both are not working in my query .because my updateddate datatype is date only Fromdate = Txtbox_AjaxCalFrom.Text.Trim();// 10/3/2015 DateTime frmdt = Convert.ToDateTime(Fromdate);// 10/3/2015 12:00:00 AM ToDate = Txtbox_AjaxCalTo.Text.Trim(); DateTime todt = Convert.ToDateTime(Fromdate); i want query like this updateddate between '2015-10-03' and '2015-10-03' full query gvOrders

问题 I have a date and a time of a month, for example 31/01/2020 at 14:00:00 , this is the last friday of January. How can I get the date for the last Friday of Feb, March, etc.? It should be dynamic because any date can come in, like the second Tuesday of any month and so on. I am trying with the following with no luck: LocalDateTime startTime = LocalDateTime.of(2020, 1, 31, 14, 0, 0); final Calendar calendar = Calendar.getInstance(); calendar.set(startTime.getYear(), startTime.getMonthValue() -

问题 When I iterate over dates in a loop, R prints out the numeric coding of the dates. For example: dates <- as.Date(c("1939-06-10", "1932-02-22", "1980-03-13", "1987-03-17", "1988-04-14", "1979-08-28", "1992-07-16", "1989-12-11"), tryFormats = c("%Y-%m-%d")) for(d in dates){ print(d) } The output is as follows: [1] -11163 [1] -13828 [1] 3724 [1] 6284 [1] 6678 [1] 3526 [1] 8232 [1] 7284 How do I get R to print out the actual dates? So the output reads: [1] "1939-06-10" [1] "1932-02-22" [1] "1980

问题 What is wrong with the below code? It gives wrong day for any date of the year. import java.util.Scanner; import java.util.Calendar; public class Solution { public static String getDay(String d, String m, String y) { String[] days = {"SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY"}; Calendar c = Calendar.getInstance(); c.set(Integer.parseInt(y), Integer.parseInt(m), Integer.parseInt(d)); return days[c.get(Calendar.DAY_OF_WEEK) - 1]; } public static void main

问题 I am trying to make a 3D scatter plot that has the following axis: Price, Time and Dates. Essentially I want to plot the price vs the time for a single day and then do that for multiple days and stack them on an axis. Here is the code I have so far: df=pd.read_csv("C:\\Desktop\\dat.csv") date= df['date'].unique() dfd = pd.DataFrame(date) days= dfd.sort_values(0) fig= plt.figure() ax= fig.add_subplot(111, projection= '3d') xx = np.arange(len(days[0])) ys = [i+xx+(i*xx)**2 for i in range(len

问题 I am trying to make a 3D scatter plot that has the following axis: Price, Time and Dates. Essentially I want to plot the price vs the time for a single day and then do that for multiple days and stack them on an axis. Here is the code I have so far: df=pd.read_csv("C:\\Desktop\\dat.csv") date= df['date'].unique() dfd = pd.DataFrame(date) days= dfd.sort_values(0) fig= plt.figure() ax= fig.add_subplot(111, projection= '3d') xx = np.arange(len(days[0])) ys = [i+xx+(i*xx)**2 for i in range(len

问题 This question already has answers here : Why does Date.parse give incorrect results? (11 answers) Closed last year . What I am trying to do is changing "yyyy-mm-dd HH:mm:ss" string to date value. Here is the current code var c = new Date('2019-01-19 23:59:59'.replace(/\s+/g, 'T')) It returns chrome : Sat Jan 19 2019 23:59:59 GMT+0900 (KST) safari : Sun Jan 20 2019 08:59:59 GMT+0900 (KST) ie11 : Sat Jan 19 2019 23:59:59 GMT+0900 (KST) What should I do to make it returns all same date? Thanks.

问题 I have a dataframe with columns of dates. I know how to shift dates by a fixed number of months (eg add 3 months to all the dates in column x); however, I cannot figure out how to shift dates by a number of months which is not fixed, but is another column of the dataframe. Any ideas? I have copied a minimal example below. The error I get is: The truth value of a Series is ambiguous Thanks a lot! import pandas as pd import numpy as np import datetime df = pd.DataFrame() df['year'] = np.arange

问题 I want to know if there is any API/class in android which can give us the original date as I do not want to get the date/time from android device. 回答1: Updated!! The old answer does not work because the timeapi.org is down. Here is the my new getTime method. It's using JSOUP . private long getTime() throws Exception { String url = "https://time.is/Unix_time_now"; Document doc = Jsoup.parse(new URL(url).openStream(), "UTF-8", url); String[] tags = new String[] { "div[id=time_section]", "div[id

问题 I am using Pyspark with Python 2.7. I have a date column in string (with ms) and would like to convert to timestamp This is what I have tried so far df = df.withColumn('end_time', from_unixtime(unix_timestamp(df.end_time, '%Y-%M-%d %H:%m:%S.%f')) ) printSchema() shows end_time: string (nullable = true) when I expended timestamp as the type of variable 回答1: Try using from_utc_timestamp: from pyspark.sql.functions import from_utc_timestamp df = df.withColumn('end_time', from_utc_timestamp(df