diff --git a/epan/column-utils.c b/epan/column-utils.c
index 8c1ae75d30..3bb090a468 100644
--- a/epan/column-utils.c
+++ b/epan/column-utils.c
@@ -1120,7 +1120,6 @@ col_set_fmt_time(frame_data *fd, column_info *cinfo, gint fmt, gint col)
       col_set_delta_time_dis(fd, cinfo, col);
       break;
 
-    case COL_REL_CONV_TIME:
     case COL_DELTA_CONV_TIME:
       /* Will be set by various dissectors */
       break;
@@ -1523,7 +1522,6 @@ col_fill_in(packet_info *pinfo, gboolean fill_fd_colums)
         col_fill_in_frame_data(pinfo->fd, pinfo->cinfo, i);
       break;
 
-    case COL_REL_CONV_TIME:
     case COL_DELTA_CONV_TIME:
       break;        /* Will be set by various dissectors */
 
diff --git a/epan/column-utils.h b/epan/column-utils.h
index 5e9372a3e0..bf1ed48ef8 100644
--- a/epan/column-utils.h
+++ b/epan/column-utils.h
@@ -230,8 +230,8 @@ extern void	col_append_sep_fstr(column_info *cinfo, gint col, const gchar *sep,
 
 /** Set the given (relative) time to a column element.
  *
- * Used by multiple dissectors to set the time in the columns
- * COL_REL_CONV_TIME and COL_DELTA_CONV_TIME
+ * Used by multiple dissectors to set the time in the column
+ * COL_DELTA_CONV_TIME
  * 
  * @param cinfo		the current packet row
  * @param col		the column to use, e.g. COL_INFO
diff --git a/epan/column.c b/epan/column.c
index 47bc8e79e7..f64759b7cf 100644
--- a/epan/column.c
+++ b/epan/column.c
@@ -97,7 +97,7 @@ col_format_to_string(gint fmt) {
     "%L",                                       /* 47) COL_PACKET_LENGTH */
     "%p",                                       /* 48) COL_PROTOCOL */
     "%Rt",                                      /* 49) COL_REL_TIME */
-    "%rct",                                     /* 50) COL_REL_CONV_TIME */
+    "%rct",                                     /* 50) !! DEPRECATED !! - COL_REL_CONV_TIME */
     "%s",                                       /* 51) COL_DEF_SRC */
     "%S",                                       /* 52) COL_DEF_SRC_PORT */
     "%rs",                                      /* 53) COL_RES_SRC */
@@ -167,7 +167,7 @@ static const gchar *dlist[NUM_COL_FMTS] = {
     "Packet length (bytes)" ,                   /* 47) COL_PACKET_LENGTH */
     "Protocol",                                 /* 48) COL_PROTOCOL */
     "Relative time",                            /* 49) COL_REL_TIME */
-    "Relative time (conversation)",             /* 50) COL_REL_CONV_TIME */
+    "Relative time (conversation)",             /* 50) !! DEPRECATED !! - COL_REL_CONV_TIME */
     "Source address",                           /* 51) COL_DEF_SRC */
     "Source port",                              /* 52) COL_DEF_SRC_PORT */
     "Src addr (resolved)",                      /* 53) COL_RES_SRC */
diff --git a/epan/column_info.h b/epan/column_info.h
index 2b9ae6d759..ebca2deb00 100644
--- a/epan/column_info.h
+++ b/epan/column_info.h
@@ -116,7 +116,7 @@ enum {
   COL_PACKET_LENGTH,  /* 47) Packet length in bytes */
   COL_PROTOCOL,       /* 48) Protocol */
   COL_REL_TIME,       /* 49) Relative time */
-  COL_REL_CONV_TIME,  /* 50) Relative time to beginning of conversation */
+  COL_REL_CONV_TIME,  /* 50) !! DEPRECATED !! - Relative time to beginning of conversation */
   COL_DEF_SRC,        /* 51) Source address */
   COL_DEF_SRC_PORT,   /* 52) Source port */
   COL_RES_SRC,        /* 53) Resolved source */
diff --git a/epan/dissectors/packet-tcp.c b/epan/dissectors/packet-tcp.c
index 502db66481..67090c2dc7 100644
--- a/epan/dissectors/packet-tcp.c
+++ b/epan/dissectors/packet-tcp.c
@@ -2994,8 +2994,6 @@ dissect_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
   struct tcp_per_packet_data_t *tcppd=NULL;
   proto_item *item;
   proto_tree *checksum_tree;
-  nstime_t	ts;
-
 
   tcph=ep_alloc(sizeof(struct tcpheader));
   SET_ADDRESS(&tcph->ip_src, pinfo->src.type, pinfo->src.len, pinfo->src.data);
@@ -3105,11 +3103,6 @@ dissect_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
       tcp_calculate_timestamps(pinfo, tcpd, tcppd);
 
     /* Fill the conversation timestamp columns */
-    if (tcpd) {
-      nstime_delta(&ts, &pinfo->fd->abs_ts, &tcpd->ts_first);
-      col_set_time(pinfo->cinfo, COL_REL_CONV_TIME, &ts, "tcp.time_relative");
-    }
-
     if(tcppd)
       col_set_time(pinfo->cinfo, COL_DELTA_CONV_TIME, &tcppd->ts_del, "tcp.time_delta");
   }
diff --git a/epan/prefs.c b/epan/prefs.c
index 5a59e293f5..ecff660ae8 100644
--- a/epan/prefs.c
+++ b/epan/prefs.c
@@ -1756,7 +1756,8 @@ try_convert_to_custom_column(gpointer *el_data)
         { COL_HPUX_SUBSYS, "nettl.subsys" },
         { COL_HPUX_DEVID, "nettl.devid" },
         { COL_DSCP_VALUE, "ip.dsfield" },
-        { COL_FR_DLCI, "fr.dlci" }
+        { COL_FR_DLCI, "fr.dlci" },
+        { COL_REL_CONV_TIME, "tcp.time_relative" }
     };
 
     guint haystack_idx;
diff --git a/gtk/new_packet_list.c b/gtk/new_packet_list.c
index 9c41687cbe..0942219b21 100644
--- a/gtk/new_packet_list.c
+++ b/gtk/new_packet_list.c
@@ -192,7 +192,6 @@ new_packet_list_append(column_info *cinfo, frame_data *fdata, packet_info *pinfo
 				case COL_EXPERT:			/* 20) Expert Info */
 				/* Will be set by various dissectors */
 				case COL_DELTA_CONV_TIME:	/* 12) Delta time to last frame in conversation */
-				case COL_REL_CONV_TIME:		/* 50) Relative time to beginning of conversation */
 					fdata->col_text[i] = se_strdup(cinfo->col_data[i]);
 					break;
 				default: