diff --git a/pkg/ccl/streamingccl/streamingest/alter_replication_job.go b/pkg/ccl/streamingccl/streamingest/alter_replication_job.go
index 16792a3c6477..b6dda8e9aad8 100644
--- a/pkg/ccl/streamingccl/streamingest/alter_replication_job.go
+++ b/pkg/ccl/streamingccl/streamingest/alter_replication_job.go
@@ -77,7 +77,7 @@ func evalTenantReplicationOptions(
 		r.retention = &retSeconds
 	}
 	if options.ResumeTimestamp != nil {
-		ts, err := asof.EvalSystemTimeExpr(ctx, evalCtx, semaCtx, options.ResumeTimestamp, op, asof.ReplicationCutover)
+		ts, err := asof.EvalSystemTimeExpr(ctx, evalCtx, semaCtx, options.ResumeTimestamp, op)
 		if err != nil {
 			return nil, err
 		}
@@ -168,7 +168,7 @@ func alterReplicationJobHook(
 			}
 
 			ct, err := asof.EvalSystemTimeExpr(ctx, evalCtx, p.SemaCtx(), alterTenantStmt.Cutover.Timestamp,
-				alterReplicationJobOp, asof.ReplicationCutover)
+				alterReplicationJobOp)
 			if err != nil {
 				return nil, nil, nil, false, err
 			}
diff --git a/pkg/sql/logictest/testdata/logic_test/as_of b/pkg/sql/logictest/testdata/logic_test/as_of
index a794436c5d97..e026a9fc01ba 100644
--- a/pkg/sql/logictest/testdata/logic_test/as_of
+++ b/pkg/sql/logictest/testdata/logic_test/as_of
@@ -50,10 +50,10 @@ SELECT * FROM t AS OF SYSTEM TIME follower_read_timestamp('boom')
 statement error pq: AS OF SYSTEM TIME: only constant expressions, with_min_timestamp, with_max_staleness, or follower_read_timestamp are allowed
 SELECT * FROM t AS OF SYSTEM TIME now()
 
-statement error pq: AS OF SYSTEM TIME: interval value '10s' too large, AS OF interval must be <= -1µs
+statement error pq: request timestamp .* too far in future
 SELECT * FROM t AS OF SYSTEM TIME '10s'
 
-statement error pq: AS OF SYSTEM TIME: interval value '00:00:00.000001' too large, AS OF interval must be <= -1µs
+statement ok
 SELECT * FROM t AS OF SYSTEM TIME interval '1 microsecond'
 
 # Verify that the TxnTimestamp used to generate now() and current_timestamp() is
diff --git a/pkg/sql/pgwire/testdata/pgtest/bind_and_resolve b/pkg/sql/pgwire/testdata/pgtest/bind_and_resolve
index fd1b86f6bb04..fb2ba3f6b633 100644
--- a/pkg/sql/pgwire/testdata/pgtest/bind_and_resolve
+++ b/pkg/sql/pgwire/testdata/pgtest/bind_and_resolve
@@ -40,7 +40,7 @@ ReadyForQuery
 
 # This is crdb_only because Postgres does not support AS OF SYSTEM TIME.
 send crdb_only
-Query {"String": "BEGIN AS OF SYSTEM TIME '1s'"}
+Query {"String": "BEGIN AS OF SYSTEM TIME '0s'"}
 Sync
 ----
 
diff --git a/pkg/sql/sem/asof/as_of.go b/pkg/sql/sem/asof/as_of.go
index 853fd36a87ff..f6627af7f1ee 100644
--- a/pkg/sql/sem/asof/as_of.go
+++ b/pkg/sql/sem/asof/as_of.go
@@ -202,41 +202,16 @@ func Eval(
 	}
 
 	stmtTimestamp := evalCtx.GetStmtTimestamp()
-	ret.Timestamp, err = DatumToHLC(evalCtx, stmtTimestamp, d, AsOf)
+	ret.Timestamp, err = DatumToHLC(evalCtx, stmtTimestamp, d)
 	if err != nil {
 		return eval.AsOfSystemTime{}, errors.Wrap(err, "AS OF SYSTEM TIME")
 	}
 	return ret, nil
 }
 
-// DatumToHLCUsage specifies which statement DatumToHLC() is used for.
-type DatumToHLCUsage int64
-
-const (
-	// AsOf is when the DatumToHLC() is used for an AS OF SYSTEM TIME statement.
-	// In this case, if the interval is not synthetic, its value has to be negative
-	// and last longer than a nanosecond.
-	AsOf DatumToHLCUsage = iota
-	// Split is when the DatumToHLC() is used for a SPLIT statement.
-	// In this case, if the interval is not synthetic, its value has to be positive
-	// and last longer than a nanosecond.
-	Split
-
-	// ReplicationCutover is when the DatumToHLC() is used for an
-	// ALTER VIRTUAL CLUSTER ... COMPLETE REPLICATION statement.
-	ReplicationCutover
-
-	// ShowTenantFingerprint is when the DatumToHLC() is used for an SHOW
-	// EXPERIMENTAL_FINGERPRINTS FROM TENANT ... WITH START TIMESTAMP statement.
-	//
-	// ShowTenantFingerprint has the same constraints as AsOf, and so we use the
-	// same value.
-	ShowTenantFingerprint = AsOf
-)
-
 // DatumToHLC performs the conversion from a Datum to an HLC timestamp.
 func DatumToHLC(
-	evalCtx *eval.Context, stmtTimestamp time.Time, d tree.Datum, usage DatumToHLCUsage,
+	evalCtx *eval.Context, stmtTimestamp time.Time, d tree.Datum,
 ) (hlc.Timestamp, error) {
 	ts := hlc.Timestamp{}
 	var convErr error
@@ -257,10 +232,6 @@ func DatumToHLC(
 		if iv, err := tree.ParseDInterval(evalCtx.GetIntervalStyle(), s); err == nil {
 			if (iv.Duration == duration.Duration{}) {
 				convErr = errors.Errorf("interval value %v too small, absolute value must be >= %v", d, time.Microsecond)
-			} else if (usage == AsOf && iv.Duration.Compare(duration.Duration{}) > 0) {
-				convErr = errors.Errorf("interval value %v too large, AS OF interval must be <= -%v", d, time.Microsecond)
-			} else if (usage == Split && iv.Duration.Compare(duration.Duration{}) < 0) {
-				convErr = errors.Errorf("interval value %v too small, SPLIT AT interval must be >= %v", d, time.Microsecond)
 			}
 			ts.WallTime = duration.Add(stmtTimestamp, iv.Duration).UnixNano()
 			break
@@ -275,11 +246,6 @@ func DatumToHLC(
 	case *tree.DDecimal:
 		ts, convErr = hlc.DecimalToHLC(&d.Decimal)
 	case *tree.DInterval:
-		if (usage == AsOf && d.Duration.Compare(duration.Duration{}) > 0) {
-			convErr = errors.Errorf("interval value %v too large, AS OF interval must be <= -%v", d, time.Microsecond)
-		} else if (usage == Split && d.Duration.Compare(duration.Duration{}) < 0) {
-			convErr = errors.Errorf("interval value %v too small, SPLIT interval must be >= %v", d, time.Microsecond)
-		}
 		ts.WallTime = duration.Add(stmtTimestamp, d.Duration).UnixNano()
 	default:
 		convErr = errors.WithSafeDetails(
diff --git a/pkg/sql/sem/asof/type_check.go b/pkg/sql/sem/asof/type_check.go
index 738729d6fac1..704a91fb0c4b 100644
--- a/pkg/sql/sem/asof/type_check.go
+++ b/pkg/sql/sem/asof/type_check.go
@@ -55,7 +55,6 @@ func EvalSystemTimeExpr(
 	semaCtx *tree.SemaContext,
 	systemTimeExpr tree.Expr,
 	op string,
-	usage DatumToHLCUsage,
 ) (hlc.Timestamp, error) {
 	typedExpr, err := TypeCheckSystemTimeExpr(ctx, semaCtx, systemTimeExpr, op)
 	if err != nil {
@@ -69,5 +68,5 @@ func EvalSystemTimeExpr(
 		return hlc.MaxTimestamp, nil
 	}
 	stmtTimestamp := evalCtx.GetStmtTimestamp()
-	return DatumToHLC(evalCtx, stmtTimestamp, d, usage)
+	return DatumToHLC(evalCtx, stmtTimestamp, d)
 }
diff --git a/pkg/sql/show_fingerprints.go b/pkg/sql/show_fingerprints.go
index e4abdd700587..962e97d1785c 100644
--- a/pkg/sql/show_fingerprints.go
+++ b/pkg/sql/show_fingerprints.go
@@ -106,7 +106,7 @@ func evalShowTenantFingerprintOptions(
 ) (*resolvedShowTenantFingerprintOptions, error) {
 	r := &resolvedShowTenantFingerprintOptions{}
 	if options.StartTimestamp != nil {
-		ts, err := asof.EvalSystemTimeExpr(ctx, evalCtx, semaCtx, options.StartTimestamp, op, asof.ShowTenantFingerprint)
+		ts, err := asof.EvalSystemTimeExpr(ctx, evalCtx, semaCtx, options.StartTimestamp, op)
 		if err != nil {
 			return nil, err
 		}
diff --git a/pkg/sql/split.go b/pkg/sql/split.go
index d98211a2e1f9..e4ba24478e13 100644
--- a/pkg/sql/split.go
+++ b/pkg/sql/split.go
@@ -124,7 +124,7 @@ func parseExpirationTime(
 		return hlc.MaxTimestamp, nil
 	}
 	stmtTimestamp := evalCtx.GetStmtTimestamp()
-	ts, err := asof.DatumToHLC(evalCtx, stmtTimestamp, d, asof.Split)
+	ts, err := asof.DatumToHLC(evalCtx, stmtTimestamp, d)
 	if err != nil {
 		return ts, errors.Wrap(err, "SPLIT AT")
 	}
diff --git a/pkg/sql/split_test.go b/pkg/sql/split_test.go
index 2172662ab284..c1b38f741c33 100644
--- a/pkg/sql/split_test.go
+++ b/pkg/sql/split_test.go
@@ -145,7 +145,7 @@ func TestSplitAt(t *testing.T) {
 		},
 		{
 			in:    "ALTER TABLE d.i SPLIT AT VALUES (17) WITH EXPIRATION '-1 day'::interval",
-			error: "SPLIT AT: interval value '-1 days' too small, SPLIT interval must be >= 1µs",
+			error: "SPLIT AT: expiration time should be greater than or equal to current time",
 		},
 		{
 			in:    "ALTER TABLE d.i SPLIT AT VALUES (17) WITH EXPIRATION '0.1us'",