Incorrect time period for Graph module

[Mick605]

Hello, thank you for the great library !

Bug description

Installed version of Ultra-Card: v3.1.0
I saw that there are v3.2.0-beta2 available, but because of issue #63 , I cannot test it, sorry. If that was fixed in these version, feel free to close this ticket

I got some issues regarding the time span period for the Graph module. In the configuration tab, in the display section, if I select "Last 3 hours", the graph is updated but seems to display last ~10 hours:

The time axis (and data) span from 12h to 23h instead of being from 20h to 23h

YAML

Below is the whole YAML file for the component (mostly default values)

type: custom:ultra-card
card_background: var(--card-background-color, var(--ha-card-background, white))
card_border_radius: 12
card_border_color: var(--divider-color)
card_border_width: 1
card_padding: 16
layout:
  rows:
    - id: row1
      columns:
        - id: col1
          modules:
            - id: graphs-1774906357681-zns6dwji3
              type: graphs
              data_source: history
              forecast_type: hourly
              forecast_entity: ""
              chart_type: line
              entities:
                - id: entity-1774906361023-i2gfcsft9
                  entity: sensor.my_sensor
                  name: ""
                  attribute: ""
                  color: "#2196F3"
                  show_points: true
                  fill_area: true
                  line_width: 2
                  line_style: solid
              time_period: 3h
              chart_width: 100%
              chart_width_percent: 100
              chart_height: 345
              show_title: false
              chart_alignment: center
              show_display_name: true
              show_entity_value: false
              info_position: top_left
              title_font_size: 12
              value_font_size: 16
              show_legend: false
              legend_position: bottom_left
              show_grid: true
              show_time_intervals: true
              smooth_curves: true
              show_tooltips: true
              show_slice_labels: true
              bar_display_limit: 0
              use_fixed_y_axis: true
              template_mode: false
              template: ""
              display_mode: always
              display_conditions: []
              y_axis_max: 50
              design: {}

Thank you in advance