date

问题 I have one column called published (date). As you can see, it has multiple date formats and also nan values. I would like to skip nan values, convert all the other formats to %Y-%-%d, and ignore the one that has the only year. I tried df['publish_time']=pd.to_datetime(df['publish_time']) and also things like: fmt=['%Y-%m-%d', '%d-%m-%Y', '%d/%m/%Y', '%Y-%d-%m', '%Y-%d-%b', '%d-%b-%Y', '%d/%b/%Y','Year: %d; month','month: %d;Year','%Y','%b %d %Y','%b %Y %d'] but I could not solve it. Any

问题 A DatePickerDialog is loaded in a Fragment with today's showing as the default date when the dialog is first opened. The user then selects a date and then the dialog is dismissed. On next re-open, how do I show the previously selected date as the default date rather than it showing today's date? I have tried .set() in the Activity but don't know how to use .get() to retrieve the date in the fragment. I've tried an interface with a listener between the Activity and the fragement but could not

问题 Okay so here is a subtle "quirk" in the r as.Date function converting from a POSIXct with a timezone, which I am wondering if it is a bug. > as.POSIXct("2013-03-29", tz = "Europe/London") [1] "2013-03-29 GMT" > as.Date(as.POSIXct("2013-03-29", tz = "Europe/London")) [1] "2013-03-29" So far no problem, but..... > as.POSIXct("2013-04-01", tz = "Europe/London") [1] "2013-04-01 BST" > as.Date(as.POSIXct("2013-04-01", tz = "Europe/London")) [1] "2013-03-31" Anybody seen this? Is this a bug or

问题 I am trying to write a rest api in which I am passing date as a URL parameter. Date formate is dd/MM/yyyy HH:mm ; REST API URL Is public static final String GET_TestDate = "/stay/datecheck?dateCheckIn={dateCheckIn}"; and Rest Method is @RequestMapping(value = HotelRestURIConstants.GET_TestDate, method = RequestMethod.GET) public @ResponseBody String getDate(@PathVariable("dateCheckIn") @DateTimeFormat(iso= DateTimeFormat.ISO.DATE) String dateCheckIn) { logger.info("passing date as a param");

问题 I tried the below code but it gives me the name of the day of week two days ago. DatePicker picker; int date = picker.DayOfMonth; int month = (picker.Month + 1);//month is 0 based int year = picker.Year; SimpleDateFormat simpledateformat = new SimpleDateFormat("EEE"); Date dt = new Date(year, month, date); 回答1: First convert your Date in to specific Date format using SimpleDateFormat Use SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEEE"); to get Day name in week WHERE EEEE ->

问题 I have a date in utc second and its time zone offset in sec. I would like to convert it to date string in format yyyy-mm-dd using java8 ZoneOffset class. Below is the time in seconds and offset long time = 1574962442, long offset = 3600 Now i want to obtain date in below format using java-8 DateTime API ? String date = 2019-11-28 // in yyyy-MM-dd 回答1: You can use Instant from java-8 DateTime API to obtains an OffsetDateTime of Instant from epoch seconds with offset seconds OffsetDateTime

问题 I tried the below code but it gives me the name of the day of week two days ago. DatePicker picker; int date = picker.DayOfMonth; int month = (picker.Month + 1);//month is 0 based int year = picker.Year; SimpleDateFormat simpledateformat = new SimpleDateFormat("EEE"); Date dt = new Date(year, month, date); 回答1: First convert your Date in to specific Date format using SimpleDateFormat Use SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEEE"); to get Day name in week WHERE EEEE ->

问题 Example Suppose for a given date, when we add timedelta(days=180), and get the new date, does it consider the leap year and calculate the new date? Or do we exclusively calculate the leap year of the current date whether Feb has 28 / 29 days and get the new date accordingly in python datetime.datetime object? 回答1: Try it out: from datetime import datetime, timedelta dt = datetime(2012, 2, 27) print(dt + timedelta(3)) # March 1st If it didn't handle February 29th, I would expect this to say

问题 I'm trying to achieve a countdown timer that would use a specific date and time for it to start. From there I need it to countdown from 1 hour and then update the initial date and time by adding an hour and then repeat itself indefinitely. This is used for a product auction that would get a new product once one sells out and the price drops every hour from when it is added to the auction which could be any time of day. Example: I need this timer to start on 2014, 7, 25, 11, 30, 0, 0 (August

问题 Oracle 12c database. I have a car sales table: CREATE TABLE CAR_SALES ( NUM_CARS NUMBER(10,0), EQUIPMENT_TYPE VARCHAR2(100), LOCATION VARCHAR2(500), SOLD_DATE DATE ) ; --Insert sample data insert into car_sales (num_cars,equipment_type,location,sold_date) values ('8','Rovers','coventry','07-SEP-19 10:00:12'); insert into car_sales (num_cars,equipment_type,location,sold_date) values ('1','Rovers','coventry','07-SEP-19 10:00:45'); insert into car_sales (num_cars,equipment_type,location,sold