Flow.Launcher/Flow.Launcher/Converters/DateTimeFormatToNowConverter.cs

using System;
using System.Globalization;
using System.Windows.Data;

namespace Flow.Launcher.Converters
{
    public class DateTimeFormatToNowConverter : IValueConverter
    {

        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value is not string format ? null : DateTime.Now.ToString(format);
        }
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}