Properties that are specific for time scales are configured in the axis.time property. It receives an object. Some of these properties are listed as follows:
|
Property |
Value |
Description |
|
unit |
millisecond, second, minute, hour, day, week, month, quarter, year |
The unit of time to consider for the data. |
|
stepSize |
Number |
The minimum step between values in the scale (this may group several values in a single tick). |
|
displayFormats |
Object, containing zero or more time units as String properties |
This object is used to override the default string format used for each unit. See supported tokens below. |
|
tooltipFormat |
A string with a date format, such as MMMM, YYYY, or h:mm:ss |
A format string to display data/time information in tooltips. See supported tokens below. |
Time scales use moment.js formats, which are based on standard date/time formatting tokens. The default formats for each unit and the output they produce are listed as follows:
|
Unit |
Default format |
Output example |
|
Millisecond |
h:mm:ss.SSS A |
2:07:36.976 PM |
|
Second |
h:mm:ss A |
2:07:36 PM |
|
Minute |
h:mm A |
2:07 PM |
|
Hour |
hA |
2 PM |
|
Day |
MMM D |
Feb 24 |
|
Week |
ll |
Feb 24 2019 |
|
Month |
MMM YYYY |
Feb 2019 |
|
Quarter |
[Q]Q - YYYY |
Q1 – 2019 |
|
Year |
YYYY |
2019 |
If you wish to format date/time in a specific way, you can use the axis.time.displayFormats property to override the default format for the time units you are using:
time: {
unit: 'month',
displayFormats: {
month: 'MMMM', // will print January, February,… for month units
}
}
You can combine the following tokens and create a string:
|
Property |
Tokens |
Output |
|
Day of month |
D, Do, DD |
1 2 … 31, 1st 2nd … 31st, 01 02 … 31 |
|
Day of week |
d, ddd, dddd |
0 1 … 6, Sun Mon … Sat, Sunday, Monday … Saturday |
|
Month |
M, MM, MMM, MMMM |
1 2 … 12, 01 02 … 12, Jan Feb … Dec, January February … December |
|
Quarter |
Q, Qo |
1 2 3 4, 1st 2nd 3rd 4th |
|
Year |
YYYY, Y |
1970 1971 … 2030, 1970 1971 … 9999 |
|
AM/PM |
A, a |
AM PM, am pm |
|
AM/PM |
A, a |
AM PM, am pm |
|
Hour |
H, HH, h, hh |
0 1 … 23, 00 01 … 23, 1 2 … 12, 01 02 … 12 |
|
Minute |
m, mm |
0 1 … 59, 00 01 … 59 |
|
Second |
s, ss |
0 1 … 59, 00 01 … 59 |
|
Millisecond |
SSS |
000 001 … 999 |
|
Time zone |
ZZ |
-0700 -0600 … +0700 |
There are also other localized formats. See additional options in the documentation for moment.js (momentjs.com/docs/#/displaying/format).