fix(dash): improve date formatting in hover

Bring it closer to RFC 3339 while keeping spaces.
The fully compatible format (2022-03-29T08:45:02Z)
may look too exotic for average human.

Dates other than in hover (e.g. in Time Period selection)
are not affected by this Change.

Change-Id: Ic5033d1b0db8505b0919e6a1392e28004c718f21
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

2 files changed, 4 insertions, 4 deletions

diff --git a/resources/tools/dash/app/pal/stats/graphs.py b/resources/tools/dash/app/pal/stats/graphs.py
index db6937402a..c1f58f2405 100644
--- a/resources/tools/dash/app/pal/stats/graphs.py
+++ b/resources/tools/dash/app/pal/stats/graphs.py
@@ -47,7 +47,7 @@ def graph_statistics(df: pd.DataFrame, job:str, layout: dict,
     for _, row in data.iterrows():
         d_type = "trex" if row["dut_type"] == "none" else row["dut_type"]
         hover_itm = (
-            f"date: {row['start_time'].strftime('%d-%m-%Y %H:%M:%S')}<br>"
+            f"date: {row['start_time'].strftime('%Y-%m-%d %H:%M:%S')}<br>"
             f"duration: "
             f"{(int(row['duration']) // 3600):02d}:"
             f"{((int(row['duration']) % 3600) // 60):02d}<br>"
diff --git a/resources/tools/dash/app/pal/trending/graphs.py b/resources/tools/dash/app/pal/trending/graphs.py
index a3357e49fb..36c19495a3 100644
--- a/resources/tools/dash/app/pal/trending/graphs.py
+++ b/resources/tools/dash/app/pal/trending/graphs.py
@@ -213,7 +213,7 @@ def _generate_trending_traces(ttype: str, name: str, df: pd.DataFrame,
     for _, row in df.iterrows():
         d_type = "trex" if row["dut_type"] == "none" else row["dut_type"]
         hover_itm = (
-            f"date: {row['start_time'].strftime('%d-%m-%Y %H:%M:%S')}<br>"
+            f"date: {row['start_time'].strftime('%Y-%m-%d %H:%M:%S')}<br>"
             f"<prop> [{row[_UNIT[ttype]]}]: {row[_VALUE[ttype]]:,.0f}<br>"
             f"<stdev>"
             f"{d_type}-ref: {row['dut_version']}<br>"
@@ -238,7 +238,7 @@ def _generate_trending_traces(ttype: str, name: str, df: pd.DataFrame,
     for avg, stdev, (_, row) in zip(trend_avg, trend_stdev, df.iterrows()):
         d_type = "trex" if row["dut_type"] == "none" else row["dut_type"]
         hover_itm = (
-            f"date: {row['start_time'].strftime('%d-%m-%Y %H:%M:%S')}<br>"
+            f"date: {row['start_time'].strftime('%Y-%m-%d %H:%M:%S')}<br>"
             f"trend [pps]: {avg:,.0f}<br>"
             f"stdev [pps]: {stdev:,.0f}<br>"
             f"{d_type}-ref: {row['dut_version']}<br>"
@@ -294,7 +294,7 @@ def _generate_trending_traces(ttype: str, name: str, df: pd.DataFrame,
                 anomaly_y.append(trend_avg[idx])
                 anomaly_color.append(_ANOMALY_COLOR[anomaly])
                 hover_itm = (
-                    f"date: {x_axis[idx].strftime('%d-%m-%Y %H:%M:%S')}<br>"
+                    f"date: {x_axis[idx].strftime('%Y-%m-%d %H:%M:%S')}<br>"
                     f"trend [pps]: {trend_avg[idx]:,.0f}<br>"
                     f"classification: {anomaly}"
                 )