diff --git a/PARR.API/Contracts/V1/ApiRoutes.cs b/PARR.API/Contracts/V1/ApiRoutes.cs
index d41ca1d5..0e45e8ba 100644
--- a/PARR.API/Contracts/V1/ApiRoutes.cs
+++ b/PARR.API/Contracts/V1/ApiRoutes.cs
@@ -53,6 +53,8 @@
 
             public const string CreateCache = Base + "/tests/cache/";
 
+            public const string IsWorkDay = Base + "/tests/is-work-day/";
+
             public const string paramDate = "{lastRunDate}";
             public const string paramApplicationInWorkId = "{applicationInWorkId}";
         }
diff --git a/PARR.API/Controllers/V1/TestController.cs b/PARR.API/Controllers/V1/TestController.cs
index 19fd0407..84b7c316 100644
--- a/PARR.API/Controllers/V1/TestController.cs
+++ b/PARR.API/Controllers/V1/TestController.cs
@@ -5,6 +5,7 @@ using PARR.API.Contracts.V1.Responses.Base;
 using PARR.API.Controllers.V1.Base;
 using PARR.API.Services.Interfaces;
 using PARR.DAL.CacheServices;
+using PARR.DAL.Services.Interfaces;
 using PARR.DAL.TransformServices;
 
 namespace PARR.API.Controllers.V1
@@ -15,12 +16,19 @@ namespace PARR.API.Controllers.V1
         private readonly IClientService clientService;
         private readonly IEsppScheduleTransformService esppScheduleTransformService;
         private readonly IRedisCacheService redisCacheService;
+        private readonly IWeekendDayService weekendDayService;
 
-        public TestController(IClientService clientService, IEsppScheduleTransformService esppScheduleTransformService, IRedisCacheService redisCacheService)
+        public TestController(
+            IClientService clientService,
+            IEsppScheduleTransformService esppScheduleTransformService,
+            IRedisCacheService redisCacheService,
+            IWeekendDayService weekendDayService
+            )
         {
             this.clientService = clientService;
             this.esppScheduleTransformService = esppScheduleTransformService;
             this.redisCacheService = redisCacheService;
+            this.weekendDayService = weekendDayService;
         }
 
 
@@ -83,6 +91,18 @@ namespace PARR.API.Controllers.V1
         }
 
 
+        /// <summary>
+        /// Проверка, это рабочий день?
+        /// </summary>
+        /// <param name="date"></param>
+        /// <returns></returns>
+        [HttpGet(ApiRoutes.Test.IsWorkDay)]
+        public async Task<IActionResult> IsWorkDay([FromQuery] DateOnly date)
+        {
+            return Ok(await weekendDayService.IsWorkDayAsync(date, true));
+        }
+
+
     }
 
     public class CaheRequestTest
diff --git a/PARR.API/Settings/UserCacheSettings.cs b/PARR.API/Settings/UserCacheSettings.cs
index 4a5e6a04..f0de0de0 100644
--- a/PARR.API/Settings/UserCacheSettings.cs
+++ b/PARR.API/Settings/UserCacheSettings.cs
@@ -10,6 +10,7 @@
         /// </summary>
         public TimeSpan UserCacheTtl { get; set; }
 
+        
         /// <summary>
         /// Сколько хранить в кэше заблокированных пользователей (как долго блокировать пользователя)
         /// </summary>
diff --git a/PARR.DAL/ParrDalInstaller.cs b/PARR.DAL/ParrDalInstaller.cs
index dc2cbfcd..60e83042 100644
--- a/PARR.DAL/ParrDalInstaller.cs
+++ b/PARR.DAL/ParrDalInstaller.cs
@@ -119,6 +119,10 @@ namespace PARR.DAL
             services.AddSingleton(settingsFromDb);
 
             PrefixSettings.PrefixWithoutVariable = settingsFromDb.TemplatePrefixWithoutVariable;
+
+            var weekendCacheSettings = new WeekendCacheSettings();
+            configuration.GetSection(nameof(WeekendCacheSettings)).Bind(weekendCacheSettings);
+            services.AddSingleton(weekendCacheSettings);
         }
 
     }
diff --git a/PARR.DAL/Services/Implementations/WeekendDayService.cs b/PARR.DAL/Services/Implementations/WeekendDayService.cs
index b514cbff..d70a3ee9 100644
--- a/PARR.DAL/Services/Implementations/WeekendDayService.cs
+++ b/PARR.DAL/Services/Implementations/WeekendDayService.cs
@@ -1,9 +1,11 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
+using PARR.DAL.CacheServices;
 using PARR.DAL.Context;
 using PARR.DAL.Models;
 using PARR.DAL.Services.Abstracts;
 using PARR.DAL.Services.Interfaces;
+using PARR.DAL.Settings;
 
 namespace PARR.DAL.Services.Implementations
 {
@@ -11,15 +13,24 @@ namespace PARR.DAL.Services.Implementations
     {
         private readonly DataContext dataContext;
         private readonly ILogger<WeekendDayService> logger;
+        private readonly IRedisCacheService redisCacheService;
+        private readonly WeekendCacheSettings weekendCacheSettings;
 
         protected override DbSet<WeekendDay> EntitySet => dataContext.WeekendDays;
 
         protected override DataContext EntitiContext => dataContext;
 
-        public WeekendDayService(DataContext dataContext, ILogger<WeekendDayService> logger) : base(logger)
+        public WeekendDayService(
+            DataContext dataContext,
+            ILogger<WeekendDayService> logger,
+            IRedisCacheService redisCacheService,
+            WeekendCacheSettings weekendCacheSettings
+            ) : base(logger)
         {
             this.dataContext = dataContext;
             this.logger = logger;
+            this.redisCacheService = redisCacheService;
+            this.weekendCacheSettings = weekendCacheSettings;
         }
 
 
@@ -28,5 +39,45 @@ namespace PARR.DAL.Services.Implementations
             return EntitySet.Where(t => t.Date >= start && t.Date <= end).Select(t => t.Date);
         }
 
+
+
+        public async Task<bool> IsWorkDayAsync(DateOnly date, bool useCache = false)
+        {
+            if (useCache)
+            {
+                // смотрим, есть ли в кэше рабочий день
+                var workdayInCache = await redisCacheService.GetCachedDataAsync<DateOnly?>(GetWorkDayKey(date));
+                if (workdayInCache != null)
+                    return true;
+
+                // смотрим, есть ли в кэше выходной день
+                var weekendInCache = await redisCacheService.GetCachedDataAsync<DateOnly?>(GetWeekendKey(date));
+                if (weekendInCache != null)
+                    return false;
+            }
+
+            var weekendInDb = await EntitySet.FirstOrDefaultAsync(t => t.Date == date);
+
+            var isWorkday = weekendInDb == null;
+
+            //сохраняем всегда в КЭШ значение выходного и рабочего дня
+            var cacheKey = isWorkday ? GetWorkDayKey(date) : GetWeekendKey(date);
+            //TODO:!!! Тут настройки вынести в DB settings
+            await redisCacheService.SetCachedDataAsync(cacheKey, date, weekendCacheSettings.WeekendTtl);
+
+            return isWorkday;
+        }
+
+
+        private string GetWeekendKey(DateOnly day)
+        {
+            return $"weekend_{day.ToString("yyyy-MM-dd")}";
+        }
+
+        private string GetWorkDayKey(DateOnly day)
+        {
+            return $"workday_{day.ToString("yyyy-MM-dd")}";
+        }
+
     }
 }
diff --git a/PARR.DAL/Services/Interfaces/IWeekendDayService.cs b/PARR.DAL/Services/Interfaces/IWeekendDayService.cs
index d49e62e5..eacb242c 100644
--- a/PARR.DAL/Services/Interfaces/IWeekendDayService.cs
+++ b/PARR.DAL/Services/Interfaces/IWeekendDayService.cs
@@ -6,5 +6,6 @@ namespace PARR.DAL.Services.Interfaces
     public interface IWeekendDayService : IBaseService<WeekendDay>
     {
         IQueryable<DateOnly> GetWeekends(DateOnly start, DateOnly end);
+        Task<bool> IsWorkDayAsync(DateOnly date, bool useCache = false);
     }
 }
diff --git a/PARR.DAL/Settings/WeekendCacheSettings.cs b/PARR.DAL/Settings/WeekendCacheSettings.cs
new file mode 100644
index 00000000..83977db6
--- /dev/null
+++ b/PARR.DAL/Settings/WeekendCacheSettings.cs
@@ -0,0 +1,10 @@
+namespace PARR.DAL.Settings
+{
+    public class WeekendCacheSettings
+    {
+        /// <summary>
+        /// Время хранения в кэше данных о выходных и рабочих днях
+        /// </summary>
+        public TimeSpan WeekendTtl { get; set; } = new TimeSpan(0, 5, 0);
+    }
+}
diff --git a/PARR.DAL/TransformServices/EsppScheduleTransformService.cs b/PARR.DAL/TransformServices/EsppScheduleTransformService.cs
index 6436f482..dd9b1ead 100644
--- a/PARR.DAL/TransformServices/EsppScheduleTransformService.cs
+++ b/PARR.DAL/TransformServices/EsppScheduleTransformService.cs
@@ -208,7 +208,7 @@ namespace PARR.DAL.TransformServices
 
 
             //TODO: вот это повторяется от метода к методу
-            //Если итоговая дата указывает на прошлое, то повторяем расчёт и ухоим в рекурсию
+            //Если итоговая дата указывает на прошлое, то повторяем расчёт и уходим в рекурсию
             if (calcDay < DateTimeOffset.UtcNow)
                 calcDay = GetNextDateRegularly(values, calcDay);
 
@@ -216,6 +216,7 @@ namespace PARR.DAL.TransformServices
             return calcDay;
         }
 
+
         private DateTimeOffset GetNextDateWeekly(List<EsppScheduleValDto> values, DateTimeOffset lastRun)
         {
             var dwNum = dwDict[values[0].Value.Value];
@@ -233,6 +234,7 @@ namespace PARR.DAL.TransformServices
             return calcDay;
         }
 
+
         private DateTimeOffset GetNextDateMonthly(List<EsppScheduleValDto> values, DateTimeOffset lastRun)
         {
             int.TryParse(values[0].Value.Value, out int dayNum);
@@ -247,6 +249,7 @@ namespace PARR.DAL.TransformServices
             return calcDay;
         }
 
+
         private DateTimeOffset GetNextDateMonthly2(List<EsppScheduleValDto> values, DateTimeOffset lastRun)
         {
             var orderNum = orderDict[values[0].Value.Value];
@@ -268,6 +271,8 @@ namespace PARR.DAL.TransformServices
 
             return calcDay;
         }
+
+
         private DateTimeOffset GetNextDateAnnually(List<EsppScheduleValDto> values, DateTimeOffset lastRun)
         {
             var monthNum = monthDict[values[0].Value.Value];
@@ -283,6 +288,7 @@ namespace PARR.DAL.TransformServices
             return calcDay;
         }
 
+
         private DateTimeOffset GetNextDateAnnually2(List<EsppScheduleValDto> values, DateTimeOffset lastRun)
         {
             var monthADict = new Dictionary<string, int>
@@ -322,6 +328,7 @@ namespace PARR.DAL.TransformServices
             return calcDay;
         }
 
+
         private List<DateTimeOffset> FindAllDaysInMonth(int dwNum, ref DateTimeOffset calcDay)
         {
             if (((int)calcDay.DayOfWeek) != dwNum)
@@ -338,6 +345,7 @@ namespace PARR.DAL.TransformServices
             return daysList;
         }
 
+
         private void OffsetToDayOfWeek(int dwNum, ref DateTimeOffset calcDay)
         {
             var daysOffset = dwNum - ((int)calcDay.DayOfWeek);
@@ -366,6 +374,7 @@ namespace PARR.DAL.TransformServices
             return lastRun;
         }
 
+
         private DateTimeOffset GetPrevDateForDistributionRun(DateTimeOffset lastRun, DistributionPeriodTypeEnum periodType, string distributionPeriod)
         {
             switch (periodType)
@@ -383,6 +392,7 @@ namespace PARR.DAL.TransformServices
             return lastRun;
         }
 
+
         public async Task<DateOnly> GetStartPeriodForDateAsync(Guid applicationInWorkId, DateTimeOffset date, DateTimeOffset referenceDate, DistributionPeriodTypeEnum periodType, string distributionPeriod)
         {
 
@@ -422,6 +432,7 @@ namespace PARR.DAL.TransformServices
             }
         }
 
+
         private DistributionPeriodTypeEnum ParseDistributionPeriodType(string value)
         {
             var result = (DistributionPeriodTypeEnum)Enum.Parse(typeof(DistributionPeriodTypeEnum), value);