Timestamp to datetime kotlin

Kotlin convert TimeStamp to DateTime

In the README section Converting an instant to local date and time components you’ll find this example: There you’ll also find elaborate explanations on which type of date and time to use in which scenario. How can I convert the date AND time to timestamp?

Kotlin convert TimeStamp to DateTime

I’m trying to find out how I can convert timestamp to datetime in Kotlin, this is very simple in Java but I cant find any equivalent of it in Kotlin.

For example: epoch timestamp (seconds since 1970-01-01) 1510500494 ==> DateTime object 2017-11-12 18:28:14 .

Is there any solution for this in Kotlin or do I have to use Java syntax in Kotlin? Please give me a simple sample to show how I can resolve this problem. Thanks in advance.

this link is not an answer to my question

private fun getDateTime(s: String): String? < try < val sdf = SimpleDateFormat("MM/dd/yyyy") val netDate = Date(Long.parseLong(s) * 1000) return sdf.format(netDate) >catch (e: Exception) < return e.toString() >> 

It’s actually just like Java. Try this:

val stamp = Timestamp(System.currentTimeMillis()) val date = Date(stamp.time) println(date) 

Although it’s Kotlin, you still have to use the Java API. An example for Java 8+ APIs converting the value 1510500494 which you mentioned in the question comments:

import java.time.* val dt = Instant.ofEpochSecond(1510500494) .atZone(ZoneId.systemDefault()) .toLocalDateTime() 

class DateTest < private val simpleDateFormat = SimpleDateFormat("dd MMMM yyyy, HH:mm:ss", Locale.ENGLISH) @Test fun testDate() < val time = 1560507488 println(getDateString(time)) // 14 June 2019, 13:18:08 >private fun getDateString(time: Long) : String = simpleDateFormat.format(time * 1000L) private fun getDateString(time: Int) : String = simpleDateFormat.format(time * 1000L) > 

Notice that we multiply by 1000L , not 1000. In case you have an integer number (1560507488) muliplied by 1000, you will get a wrong result: 17 January 1970, 17:25:59 .

Conversion of date and time to unix timestamp, In timestamp variable, I want to get the timestampt value with the current hour, minute and second. The currentDataTime gives me the time in this format: 2020-08-28 17:18:02.Currently, the timestamp variable returns me 1598645882634 (the last 3 numbers are the miliseconds) but when I convert it in …

How convert timestamp in Kotlin

l am try to convert timeestamp coming from data json url

TimeFlight.text = list[position].TimeFlight.getDateTime(toString()) 

l am use list view in my app

override fun getView(position: Int, convertView: View?, parent: ViewGroup?): View < val view : View = LayoutInflater.from(context).inflate(R.layout.row_layout,parent,false) val TimeFlight = view.findViewById(R.id.time_id) as AppCompatTextView val LogoAriline = view.findViewById(R.id.logo_image) as ImageView status.text= list[position].Stauts TimeFlight.text = list[position].TimeFlight.getDateTime(toString()) Picasso.get().load(Uri.parse("https://www.xxxxxxxxx.com/static/images/data/operators/"+status.text.toString()+"_logo0.png")) .into(LogoAriline) return view as View >private fun getDateTime(s: String): String? < try < val sdf = SimpleDateFormat("MM/dd/yyyy") val netDate = Date(Long.parseLong(s)) return sdf.format(netDate) >catch (e: Exception) < return e.toString() >> 

data class FlightShdu (val Airline : String ,val TimeFlight : String) 

l used that code getDateTime but the format unknown

Assuming TimeFlight is a stringified epoch timestamp (in milliseconds), you should pass that to your getDateTime() function:

TimeFlight.text = getDateTime(list[position].TimeFlight) 

(if they are not millis but seconds, then simply multiply them by 1000 before passing them to the Date constructor)

On a side note, depending on the exact use case, creating a new SimpleDateFormat object might not be necessary on every getDateTime() call, you can make it an instance variable.

Also, i’d advise you to take a look at (and follow) the Java naming conventions for both Java and Kotlin applications.

The problem here is that the Date constructor take long as the milliseconds count since 1/1/1970 and the number you are getting is the seconds count.

my suggestion is the following code( you can change the formate):

const val DayInMilliSec = 86400000 private fun getDateTime(s: String): String? < return try < val sdf = SimpleDateFormat("MM/dd/yyyy") val netDate = Date(s.toLong() * 1000 ).addDays(1) sdf.format(netDate) >catch (e: Exception) < e.toString() >> fun Date.addDays(numberOfDaysToAdd: Int): Date

private fun getDateTime(s: String): String? < return try < val date = SimpleDateFormat("MM/dd/yyyy HH:mm:ss").format(Date(s.toLong()*1000)) // current timestamp in sec val epoch = System.currentTimeMillis()/1000 // Difference between two epoc val dif = epoch - s.toLong() val timeDif: String when < dif < timeDif = "$dif sec ago" >dif/60 < 60 -> < timeDif = "$min ago" > dif/3600 < 24 -> < timeDif = "$hour ago" > dif/86400 < 360 -> < timeDif = "$day ago" > else -> < timeDif = "$year ago" > > "($timeDif) $date" > catch (e: Exception) < e.toString() >> 

Android/Kotlin — Days difference between two time, android kotlin timestamp. Share. Follow edited Jan 21, 2020 at 18:30. Rizwan. 1,441 12 12 silver badges 25 25 bronze badges. asked Jan 20, 2020 at 19:55. Lucas Fernandes Lucas Fernandes. 33 5 5 bronze badges. 1. 1. differenceBetweenTimestamps doesn’t tell you if it’s a different day. it tells you …

Conversion of date and time to unix timestamp

In timestamp variable, I want to get the timestampt value with the current hour, minute and second. The currentDataTime gives me the time in this format: 2020-08-28 17:18:02 . Currently, the timestamp variable returns me 1598645882634 (the last 3 numbers are the miliseconds) but when I convert it in a online conversor to a Human readable format, it gives me 08/28/2020 @ 8:18pm (UTC) . The only one problem is the hour and minute tha is 3 hours different because of my zone. How can I convert the date AND time to timestamp?

object DateTime < val currentDataTime: String @SuppressLint("SimpleDateFormat") get() < val dateFormat = SimpleDateFormat("yyyy-MM-dd HH:mm:ss") return dateFormat.format(Date()) >val timestamp: String get() < val formatter: DateFormat = SimpleDateFormat("yyyy-MM-dd HH:mm:ss") val date = formatter.parse(currentDataTime) as Date return date.time.toString().dropLast(3) //it is returning >> 

A Unix timestamp is defined to be (almost) UTC. It carries no timezone information so it cannot be shifted according to a timezone difference without everything based on it falling apart. (If you’d like to hardwire it anyway, according to your example just add your timezone difference in milliseconds. But read on first.)

Localized time can only be interpreted consistently as long as the proper timezone is attached. It jumps back and forth whenever daylight-savings time starts or ends. If that’s not complicated enough, the rules for daylight-savings time may change at any time (and do so around the globe).

Your online converter apparently just took a UTC-based timestamp and displayed it according to your local timezone.

To handle localized date and time values, use the multiplatform date/time library kotlinx-datetime. In the README section Converting an instant to local date and time components you’ll find this example:

val currentMoment: Instant = Clock.System.now() val datetimeInUtc: LocalDateTime = currentMoment.toLocalDateTime(TimeZone.UTC) val datetimeInSystemZone: LocalDateTime = currentMoment.toLocalDateTime(TimeZone.currentSystemDefault()) 

There you’ll also find elaborate explanations on which type of date and time to use in which scenario.

Kotlin convert Date or Calendar to firebase timestamp, If Timestamp.fromDate () isn’t working, try the constructor. new Timestamp (seconds: number, nanoseconds: number): Timestamp. So for your case: get the seconds from your Date, then set the nanoseconds to 0. new Timestamp (new Date (yyyy, mm, dd).getTime () / 1000, 0) Share. Improve this …

How to get current System Timestamp for Firebase? in Android Kotlin

I am using Firebase pagging and therefore i need current timestamp for queries database in firebase ? can anyone knows how to get current timestamp from system?

FirebaseFirestore.getInstance().collection("news") .orderBy("timestamp",Query.Direction.DESCENDING) .startAfter(timestamp) // for here i need current system timestamp. how can i?? .limit(4) .get() 

firebase.firestore.FieldValue.serverTimestamp()

If you want the date value of firebase.firestore.FieldValue.serverTimestamp() you can use .toDate() . See FireStore Timesteamp.

If you want the current Date as a timestamp you can use the following

For Firebase Functions

import admin = require('firebase-admin'); const todayAsTimestamp = admin.firestore.Timestamp.now() 

For local projects

import < Timestamp >from '@google-cloud/firestore'; const myTimestampAsDate = Timestamp.now() 

Ferin’s answer led me in the right direction. This what worked for me in my current project using Kotlin when getting the timestamp value to store in firebase cloud firestore.

val createdAt = FieldValue.serverTimestamp() 

If anyone is confused I can explain further. Happy coding everyone!

Android Retrofit on Kotlin how i can add timestamp to, 0. Simplest solution add custom field in model for timestamp. val timeStamp: String. Аnd when retrofit response come, rewrite this null field with timestamp, i use method SimpleDateFormat. // retrofit response var res = resp.body () // new list which i create and rewrite with timestamp and then return var l = …

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Timestamp to datetime kotlin

Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. It is a modern programming language that makes developers happier. It provides many date time functions to handle date time functionality.

Here we will explain Kotlin date time functions to get current epoch or Unix timestamp, convert timestamp to date and convert date to epoch or Unix timestamp.

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You can get the current unix timestamp using currentTimeMillis() .

Convert epoch or Unix timestamp to date in Kotlin

You can convert unix timestamp to date as follows.

val timeStamp = Timestamp(System.currentTimeMillis()) val date = Date(timeStamp.getTime())

Convert date to epoch or unix timestamp in Kotlin

You can convert the date to unix timestamp using following.

val date = SimpleDateFormat(«dd-MM-yyyy»).parse(«04-07-2021») println(date.time)

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Kotlin convert TimeStamp to DateTime

I’m trying to find out how I can convert timestamp to datetime in Kotlin, this is very simple in Java but I cant find any equivalent of it in Kotlin.

For example: epoch timestamp (seconds since 1970-01-01) 1510500494 ==> DateTime object 2017-11-12 18:28:14 .

Is there any solution for this in Kotlin or do I have to use Java syntax in Kotlin? Please give me a simple sample to show how I can resolve this problem. Thanks in advance.

this link is not an answer to my question

asked Nov 12 ’17 22:11

DolDurma

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2 Answers

private fun getDateTime(s: String): String? < try < val sdf = SimpleDateFormat("MM/dd/yyyy") val netDate = Date(Long.parseLong(s) * 1000) return sdf.format(netDate) >catch (e: Exception) < return e.toString() >> 

answered Oct 02 ’22 20:10

arjun shrestha

Although it’s Kotlin, you still have to use the Java API. An example for Java 8+ APIs converting the value 1510500494 which you mentioned in the question comments:

import java.time.* val dt = Instant.ofEpochSecond(1510500494) .atZone(ZoneId.systemDefault()) .toLocalDateTime() 

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Kotlin конвертировать TimeStamp в DateTime

Есть ли какое-то решение для этого в kotlin или я должен использовать синтаксис Java в kotlin? Пожалуйста, дайте мне простой пример, чтобы показать, как я могу решить эту проблему. Заранее спасибо.

эта ссылка не является ответом на мой вопрос

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private fun getDateTime(s: String): String? < try < val sdf = SimpleDateFormat("MM/dd/yyyy") val netDate = Date(Long.parseLong(s)) return sdf.format(netDate) >catch (e: Exception) < return e.toString() >> 

Это на самом деле так же, как Java. Попробуй это:

val stamp = Timestamp(System.currentTimeMillis()) val date = Date(stamp.getTime()) println(date) 

class DateTest < private val simpleDateFormat = SimpleDateFormat("dd MMMM yyyy, HH:mm:ss", Locale.ENGLISH) @Test fun testDate() < val time = 1560507488 println(getDateString(time)) // 14 June 2019, 13:18:08 >private fun getDateString(time: Long) : String = simpleDateFormat.format(time * 1000L) private fun getDateString(time: Int) : String = simpleDateFormat.format(time * 1000L) > 

Обратите внимание, что мы умножаем на 1000L, а не на 1000. Если у вас есть целое число (1560507488), умноженное на 1000, вы получите неправильный результат: 17 января 1970 г., 17:25:59.

Хотя это Kotlin, вы все равно должны использовать Java API. Пример преобразования API в API Java 8+ 1510500494 который вы упомянули в комментариях к вопросу:

import java.time.* val dt = Instant.ofEpochSecond(1510500494).atZone(ZoneId.systemDefault()).toLocalDateTime() 

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