diff --git a/handler.go b/handler.go
index 2ced1f66e..bffb36947 100644
--- a/handler.go
+++ b/handler.go
@@ -909,21 +909,10 @@ func (h *Handler) readURLQueryRequest(r *http.Request) (*QueryRequest, error) {
 		return nil, errors.New("invalid slice argument")
 	}
 
-	// Parse time granularity.
-	quantum := TimeQuantum("YMDH")
-	if s := q.Get("time_granularity"); s != "" {
-		v, err := ParseTimeQuantum(s)
-		if err != nil {
-			return nil, errors.New("invalid time granularity")
-		}
-		quantum = v
-	}
-
 	return &QueryRequest{
 		Query:       query,
 		Slices:      slices,
 		ColumnAttrs: q.Get("columnAttrs") == "true",
-		Quantum:     quantum,
 	}, nil
 }
 
@@ -1392,9 +1381,6 @@ type QueryRequest struct {
 	// Return column attributes, if true.
 	ColumnAttrs bool
 
-	// Time granularity to use with the timestamp.
-	Quantum TimeQuantum
-
 	// If true, indicates that query is part of a larger distributed query.
 	// If false, this request is on the originating node.
 	Remote bool
@@ -1405,7 +1391,6 @@ func decodeQueryRequest(pb *internal.QueryRequest) *QueryRequest {
 		Query:       pb.Query,
 		Slices:      pb.Slices,
 		ColumnAttrs: pb.ColumnAttrs,
-		Quantum:     TimeQuantum(pb.Quantum),
 		Remote:      pb.Remote,
 	}
 
diff --git a/internal/private.pb.go b/internal/private.pb.go
index a7e942bc5..c0e3a4825 100644
--- a/internal/private.pb.go
+++ b/internal/private.pb.go
@@ -3804,7 +3804,7 @@ func init() { proto.RegisterFile("private.proto", fileDescriptorPrivate) }
 
 var fileDescriptorPrivate = []byte{
 	// 709 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x9c, 0x55, 0xc1, 0x6e, 0x13, 0x49,
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x9c, 0x55, 0xc1, 0x6e, 0x13, 0x49,
 	0x10, 0xdd, 0xb1, 0xc7, 0x5e, 0xbb, 0xbc, 0xc9, 0x26, 0xbd, 0xd1, 0xca, 0x44, 0x91, 0x65, 0xf5,
 	0x81, 0x84, 0x1c, 0x72, 0x08, 0x12, 0x42, 0xc0, 0x01, 0xc5, 0x0e, 0x8a, 0x25, 0x1c, 0x44, 0x3b,
 	0xe2, 0x88, 0xd4, 0xb1, 0x4b, 0xc9, 0x28, 0xe3, 0x19, 0x33, 0xdd, 0x4e, 0x6c, 0x0e, 0x7c, 0x07,
diff --git a/internal/public.pb.go b/internal/public.pb.go
index 75d79133f..498714aea 100644
--- a/internal/public.pb.go
+++ b/internal/public.pb.go
@@ -128,7 +128,6 @@ type QueryRequest struct {
 	Query       string   `protobuf:"bytes,1,opt,name=Query,proto3" json:"Query,omitempty"`
 	Slices      []uint64 `protobuf:"varint,2,rep,packed,name=Slices" json:"Slices,omitempty"`
 	ColumnAttrs bool     `protobuf:"varint,3,opt,name=ColumnAttrs,proto3" json:"ColumnAttrs,omitempty"`
-	Quantum     string   `protobuf:"bytes,4,opt,name=Quantum,proto3" json:"Quantum,omitempty"`
 	Remote      bool     `protobuf:"varint,5,opt,name=Remote,proto3" json:"Remote,omitempty"`
 }
 
@@ -490,12 +489,6 @@ func (m *QueryRequest) MarshalTo(dAtA []byte) (int, error) {
 		}
 		i++
 	}
-	if len(m.Quantum) > 0 {
-		dAtA[i] = 0x22
-		i++
-		i = encodeVarintPublic(dAtA, i, uint64(len(m.Quantum)))
-		i += copy(dAtA[i:], m.Quantum)
-	}
 	if m.Remote {
 		dAtA[i] = 0x28
 		i++
@@ -842,10 +835,6 @@ func (m *QueryRequest) Size() (n int) {
 	if m.ColumnAttrs {
 		n += 2
 	}
-	l = len(m.Quantum)
-	if l > 0 {
-		n += 1 + l + sovPublic(uint64(l))
-	}
 	if m.Remote {
 		n += 2
 	}
@@ -1790,35 +1779,6 @@ func (m *QueryRequest) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.ColumnAttrs = bool(v != 0)
-		case 4:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Quantum", wireType)
-			}
-			var stringLen uint64
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowPublic
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				stringLen |= (uint64(b) & 0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			intStringLen := int(stringLen)
-			if intStringLen < 0 {
-				return ErrInvalidLengthPublic
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Quantum = string(dAtA[iNdEx:postIndex])
-			iNdEx = postIndex
 		case 5:
 			if wireType != 0 {
 				return fmt.Errorf("proto: wrong wireType = %d for field Remote", wireType)
@@ -2575,41 +2535,41 @@ var (
 func init() { proto.RegisterFile("public.proto", fileDescriptorPublic) }
 
 var fileDescriptorPublic = []byte{
-	// 576 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x54, 0x4b, 0x8e, 0xd3, 0x40,
+	// 563 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x8c, 0x54, 0x4b, 0x8e, 0xd3, 0x40,
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+	0x04, 0x00, 0x00,
 }
diff --git a/internal/public.proto b/internal/public.proto
index 571fe0364..ff161d930 100644
--- a/internal/public.proto
+++ b/internal/public.proto
@@ -40,7 +40,6 @@ message QueryRequest {
 	string Query = 1;
 	repeated uint64 Slices = 2;
 	bool ColumnAttrs = 3;
-	string Quantum = 4;
 	bool Remote = 5;
 }