Strip seconds from datetime

Question

I want to trip/remove seconds from date time. I checked some solution but showing solution using format string like

DateTime datetime = DateTime.UtcNow;


        

Answer 1

How about this rather elegant solution?

new DateTime(DateTime.UtcNow.Ticks / 600000000 * 600000000)

... which will also strip any milli/micro/nanoseconds.

Answer 2

DateTime time = DateTime.Now;
string timestring = time.ToString("g");

ToString("g") will convert DateTime to string and remove seconds.

Output: 03/29/2018 11:11 PM

Answer 3

You can create a new instance of date with the seconds set to 0.

DateTime a = DateTime.UtcNow;
DateTime b = new DateTime(a.Year, a.Month, a.Day, a.Hour, a.Minute, 0, DateTimeKind.Utc);

Console.WriteLine(a);
Console.WriteLine(b);

Answer 4

// 2.3 - 0.3 = 2.0
public static DateTime Floor(this DateTime value, TimeSpan interval) {
    var mod = value.Ticks % interval.Ticks;
    return value.AddTicks( -mod );
}

// 2.3 - 0.3 + 1 = 3.0
public static DateTime Ceil(this DateTime value, TimeSpan interval) {
    var mod = value.Ticks % interval.Ticks;
    if (mod != 0) return value.AddTicks( -mod ).Add( interval );
    return value;
}

Answer 5

You can do

DateTime dt = DateTime.Now;
dt = dt.AddSeconds(-dt.Second);

to set the seconds to 0.

Answer 6

A simple solution which strips both seconds and milliseconds from a DateTime:

DateTime dt = DateTime.Now;
DateTime secondsStripped = dt.Date.AddHours(dt.Hour).AddMinutes(dt.Minute);