diff --git a/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java b/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java
index 10f0d21c0..54a129eb5 100644
--- a/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java
+++ b/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java
@@ -431,15 +431,15 @@ public abstract class JedisConverters extends Converters {
 			return paramsToUse.keepttl();
 		}
 
-		if (!expiration.isPersistent()) {
-			if (expiration.getTimeUnit() == TimeUnit.MILLISECONDS) {
-				return paramsToUse.px(expiration.getExpirationTime());
-			}
-
-			return paramsToUse.ex((int) expiration.getExpirationTime());
+		if (expiration.isPersistent()) {
+			return paramsToUse;
 		}
 
-		return params;
+		if (expiration.getTimeUnit() == TimeUnit.MILLISECONDS) {
+			return expiration.isUnixTimestamp() ? paramsToUse.pxAt(expiration.getExpirationTime()) : paramsToUse.px(expiration.getExpirationTime());
+		}
+
+		return expiration.isUnixTimestamp() ? paramsToUse.exAt(expiration.getConverted(TimeUnit.SECONDS)) : paramsToUse.ex(expiration.getConverted(TimeUnit.SECONDS));
 	}
 
 	/**
diff --git a/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java b/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java
index 79687c4c4..aa86703ee 100644
--- a/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java
+++ b/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java
@@ -699,11 +699,19 @@ public abstract class LettuceConverters extends Converters {
 			} else if (!expiration.isPersistent()) {
 
 				switch (expiration.getTimeUnit()) {
-					case SECONDS:
-						args.ex(expiration.getExpirationTime());
+					case MILLISECONDS:
+						if (expiration.isUnixTimestamp()) {
+							args.pxAt(expiration.getConverted(TimeUnit.MILLISECONDS));
+						} else {
+							args.px(expiration.getConverted(TimeUnit.MILLISECONDS));
+						}
 						break;
 					default:
-						args.px(expiration.getConverted(TimeUnit.MILLISECONDS));
+						if (expiration.isUnixTimestamp()) {
+							args.exAt(expiration.getConverted(TimeUnit.SECONDS));
+						} else {
+							args.ex(expiration.getConverted(TimeUnit.SECONDS));
+						}
 						break;
 				}
 			}
@@ -740,7 +748,7 @@ public abstract class LettuceConverters extends Converters {
 			return args;
 		}
 
-		if(expiration.isPersistent()) {
+		if (expiration.isPersistent()) {
 			return args.persist();
 		}
 
diff --git a/src/test/java/org/springframework/data/redis/connection/jedis/JedisConvertersUnitTests.java b/src/test/java/org/springframework/data/redis/connection/jedis/JedisConvertersUnitTests.java
index 4bb426f4a..548233fdf 100644
--- a/src/test/java/org/springframework/data/redis/connection/jedis/JedisConvertersUnitTests.java
+++ b/src/test/java/org/springframework/data/redis/connection/jedis/JedisConvertersUnitTests.java
@@ -213,6 +213,22 @@ class JedisConvertersUnitTests {
 		assertThat(toString(JedisConverters.toSetCommandExPxArgument(Expiration.milliseconds(100)))).isEqualTo("px 100");
 	}
 
+	@Test // GH-2050
+	void convertsExpirationToSetPXAT() {
+
+		assertThat(JedisConverters.toSetCommandExPxArgument(Expiration.unixTimestamp(10, TimeUnit.MILLISECONDS)))
+				.extracting(SetParams::toString)
+				.isEqualTo(SetParams.setParams().pxAt(10).toString());
+	}
+
+	@Test // GH-2050
+	void convertsExpirationToSetEXAT() {
+
+		assertThat(JedisConverters.toSetCommandExPxArgument(Expiration.unixTimestamp(1, TimeUnit.MINUTES)))
+				.extracting(SetParams::toString)
+				.isEqualTo(SetParams.setParams().exAt(60).toString());
+	}
+
 	@Test // DATAREDIS-316, DATAREDIS-749
 	void toSetCommandNxXxOptionShouldReturnNXforAbsent() {
 		assertThat(toString(JedisConverters.toSetCommandNxXxArgument(SetOption.ifAbsent()))).isEqualTo("nx");
diff --git a/src/test/java/org/springframework/data/redis/connection/lettuce/LettuceConvertersUnitTests.java b/src/test/java/org/springframework/data/redis/connection/lettuce/LettuceConvertersUnitTests.java
index a4354405e..917fd1e80 100644
--- a/src/test/java/org/springframework/data/redis/connection/lettuce/LettuceConvertersUnitTests.java
+++ b/src/test/java/org/springframework/data/redis/connection/lettuce/LettuceConvertersUnitTests.java
@@ -39,8 +39,10 @@ import org.springframework.data.redis.connection.RedisClusterNode.Flag;
 import org.springframework.data.redis.connection.RedisClusterNode.LinkState;
 import org.springframework.data.redis.connection.RedisStringCommands.SetOption;
 import org.springframework.data.redis.connection.RedisZSetCommands;
+import org.springframework.data.redis.connection.jedis.JedisConverters;
 import org.springframework.data.redis.core.types.Expiration;
 import org.springframework.data.redis.core.types.RedisClientInfo;
+import redis.clients.jedis.params.SetParams;
 
 /**
  * @author Christoph Strobl
@@ -136,6 +138,20 @@ class LettuceConvertersUnitTests {
 		assertThat((Boolean) getField(args, "xx")).isEqualTo(Boolean.FALSE);
 	}
 
+	@Test // GH-2050
+	void convertsExpirationToSetPXAT() {
+
+		assertThatCommandArgument(LettuceConverters.toSetArgs(Expiration.unixTimestamp(10, TimeUnit.MILLISECONDS), null))
+				.isEqualTo(SetArgs.Builder.pxAt(10));
+	}
+
+	@Test // GH-2050
+	void convertsExpirationToSetEXAT() {
+
+		assertThatCommandArgument(LettuceConverters.toSetArgs(Expiration.unixTimestamp(1, TimeUnit.MINUTES), null))
+				.isEqualTo(SetArgs.Builder.exAt(60));
+	}
+
 	@Test // DATAREDIS-316
 	void toSetArgsShouldSetPxForMilliseconds() {