How to round DateTime of Joda library to the nearest X minutes?

Question

How to round DateTime of Joda library to the nearest X minutes ?
For example:

X = 10 minutes
Jun 27, 11:32 -> Jun 27, 11         


        

Answer 1

I have a function for LocalTime class but I think it's very easy to adopt my sample for your case:

(Kotlin lang)

fun LocalTime.round(roundValue: Int): LocalTime {
    val timeInMillis = this.millisOfDay
    val remainder = timeInMillis % roundValue
    return when {
        remainder < (roundValue / 2) -> LocalTime.fromMillisOfDay((timeInMillis - remainder).toLong())
        else -> LocalTime.fromMillisOfDay((timeInMillis + (roundValue - remainder)).toLong())
    }
}

And usage:

var userWakeTime = LocalTime(6, 42)
userWakeTime = userWakeTime.round(15 * 60 * 1000) // userWakeTime = 6:45