How do I modify x-axis values to display date only for each column?

[Edwin1471]

Hi,

how can I modify x-axis in order to display date only for each column. 

query

| eval finish_time_epoch = strftime(strptime(FINISH_TIME, "%Y-%m-%d %H:%M:%S"),"%Y-%m-%d %H:%M:%S")
| eval start_time_epoch = strftime(strptime(START_TIME, "%Y-%m-%d %H:%M:%S"),"%Y-%m-%d %H:%M:%S")
| eval duration_s = strptime(FINISH_TIME, "%Y-%m-%d %H:%M:%S") - strptime(START_TIME, "%Y-%m-%d %H:%M:%S")
| eval duration_min = round(duration_s / 60, 2)
| chart sum(duration_min) as "time" by TimeDate

[richgalloway]

Convert the timestamps to date strings using the strptime and strftime functions.

| eval finish_time_epoch = strftime(strptime(FINISH_TIME, "%Y-%m-%d %H:%M:%S"),"%Y-%m-%d %H:%M:%S")
| eval start_time_epoch = strftime(strptime(START_TIME, "%Y-%m-%d %H:%M:%S"),"%Y-%m-%d %H:%M:%S")
| eval duration_s = strptime(FINISH_TIME, "%Y-%m-%d %H:%M:%S") - strptime(START_TIME, "%Y-%m-%d %H:%M:%S")
| eval duration_min = round(duration_s / 60, 2)
| eval Date=strftime(strptime(TimeDate, "%Y-%m-%dT%H:%M:H:%S%Z"), "%Y-%m-%d")
| chart sum(duration_min) as "time" by Date