<TelerikChart>

    <ChartSeriesItems>
        <ChartSeries Type="ChartSeriesType.Column" Name="Test" Data="@mesures"
                     Field="@nameof(Mesure.Value)" CategoryField="@nameof(Mesure.Date)" Aggregate="ChartSeriesAggregate.Sum">
        </ChartSeries>
    </ChartSeriesItems>

    <ChartCategoryAxes>
        <ChartCategoryAxis Min="@(SerializeDate(MinDate))"
                           Max="@(SerializeDate(MaxDate))"
                           BaseUnit="ChartCategoryAxisBaseUnit.Hours"
                           Type="ChartCategoryAxisType.Date" BaseUnitStep="1"></ChartCategoryAxis>
    </ChartCategoryAxes>

</TelerikChart>

@code {

    private DateTime MinDate { get; set; } = new DateTime(2019, 01, 01, 10, 11, 12);
    private DateTime MaxDate { get; set; } = new DateTime(2019, 01, 01, 20, 21, 22);

    public string SerializeDate(DateTime date)
    {
        return System.Text.Json.JsonSerializer.Serialize(date).Replace("\"", "");
    }

    public class Mesure
    {
        public DateTime Date { get; set; }
        public int Value { get; set; }
    }

    public List<Mesure> mesures = new List<Mesure>()
{
        new Mesure() { Date = new DateTime(2019, 01, 01, 1, 2, 3), Value = 1 },
        new Mesure() { Date = new DateTime(2019, 01, 01, 14, 0, 0), Value = 2 },
        new Mesure() { Date = new DateTime(2019, 01, 01, 14, 30, 0), Value = 3 },
        new Mesure() { Date = new DateTime(2019, 01, 01, 14, 35, 0), Value = 4 },
        new Mesure() { Date = new DateTime(2019, 01, 01, 15, 0, 0), Value = 5 },
        new Mesure() { Date = new DateTime(2019, 01, 01, 16, 0, 0), Value = 6 },
        new Mesure() { Date = new DateTime(2019, 01, 01, 17, 0, 0), Value = 7 },
    };
}