French.yaml

substitutions:
# Based on the following time & date formats:
  time_format12: "%l:%M%p" # 1:25PM
  time_format24: "%H:%M:%S" # 13:25:59
  date_format: "%b %d" # Jan 01
  date_formatA: "%a" # Mon

# The plan here is to continue using English formatting for regular mode and switch to French mode on intervals.
# Read the notes if you plan on doing differently.

font:
  - file: fonts/MatrixChunky8X.ttf
    id: default_font
    size: 8
    glyphs:  |
      0123456789:.Sun MoTesWdhFriatAPJbpylgOcNvDjfémû
    # Above covers Sun Mon Tues Wed Thu Fri Sat AM PM Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec as well as French months/days

text_sensor:
  - platform: template
    id: time_text
    name: "$friendly_name Replacement Time Text"
    entity_category: diagnostic
    update_interval: never
    internal: true
    # if you don't plan on using 12-hour time as your regular mode, you don't really need any filter at all
    filters:
      - lambda: |-
          // French generally uses 24-hour time, let's just substitute a different format entirely "%Hh %M" (13h 25) - you could also just just use "$time_format24"
          if (id(hour12_mode).state == 1) {
            int offset = 0;
            // delete next 3 lines if using the HA version...
            if (id(tzoffset_on).state != 0) {
              offset = (int)(60 * 60 * (id(tzoffset).state));
            }
            std::time_t tz1time = (id(my_time).now().timestamp + offset);
            std::tm *tz1time_astm = localtime(&tz1time);
            char display_tmdt[20];
            strftime(display_tmdt, 20, "%Hh %M", tz1time_astm);
            std::string tmdt(display_tmdt);
            return tmdt;
          } else {
            return x;
          }
  - platform: template
    id: date_text
    name: "$friendly_name Replacement Date Text"
    entity_category: diagnostic
    update_interval: never
    internal: true
    # note that it would be easier to change date_format above to "%d %b"
    # But if you want to keep standard English formatting and have just French formatting sometimes, then the lambda is needed:
    filters:
      - lambda: |-
          // We're just going to get the time again, this time calling the appropriate format from strftime
          if (id(hour12_mode).state == 1) {
            int offset = 0;
            // delete next 3 lines if using the HA version...
            if (id(tzoffset_on).state != 0) {
              offset = (int)(60 * 60 * (id(tzoffset).state));
            }
            std::time_t tz1time = (id(my_time).now().timestamp + offset);
            std::tm *tz1time_astm = localtime(&tz1time);
            char display_tmdt[20];
            strftime(display_tmdt, 20, "%d %b", tz1time_astm);
            std::string tmdt(display_tmdt);
            return tmdt;
          } else {
            return x;
          }
      - substitute:
        - "Jan -> jan"
        - "Feb -> fév"
        - "Mar -> mars"
        - "Apr -> avr"
        - "May -> mai"
        - "Jun -> juin"
        - "Jul -> juil"
        - "Aug -> août"
        - "Sep -> sept"
        - "Oct -> oct"
        - "Nov -> nov"
        - "Dec -> déc"
  - platform: template
    id: dateA_text
    name: "$friendly_name Replacement Date A Text"
    entity_category: diagnostic
    update_interval: never
    internal: true
    filters:
      - substitute:
        - "Sun -> dim"
        - "Mon -> lun"
        - "Tue -> mar"
        - "Wed -> mer"
        - "Thu -> jeu"
        - "Fri -> ven"
        - "Sat -> sam"