feat(automations): weekday + timezone scheduling for time-of-day rule

Extend the time-of-day condition from a bare server-local HH:MM window to a real
schedule: pick which weekdays it is active (0=Mon..6=Sun, empty = every day) and
an optional IANA timezone (empty = server local). Closes the parity gap where
even a $5 WLED chip has weekday timers.

- Overnight windows (start > end) count toward the day they START on, so the
  after-midnight tail is matched against the previous weekday.
- Timezones are resolved via zoneinfo, cached, and fall back to server-local
  with a one-time warning on an invalid name (the ~1Hz tick never log-spams).
- Backward compatible: new fields default to all-days / server-local, so
  existing automations are unchanged (no migration).
- Frontend: weekday chips + timezone input on the rule editor, day/timezone in
  the rule summary, styles + i18n (en/ru/zh).

10 unit tests (weekday filter, overnight start-day semantics, tz fallback,
round-trip, invalid-day filtering); full suite green (1936 passed).
(Geographic sunrise/sunset triggers are a natural follow-up — the daylight
value source already has the solar math to reuse.)

server/src/ledgrab/api/routes/automations.py

@@ -52,6 +52,8 @@ def _rule_from_schema(s: RuleSchema) -> Rule:
         "time_of_day": lambda: TimeOfDayRule(
             start_time=s.start_time or "00:00",
             end_time=s.end_time or "23:59",
+            days_of_week=s.days_of_week or [],
+            timezone=s.timezone or "",
         ),
         "system_idle": lambda: SystemIdleRule(
             idle_minutes=s.idle_minutes if s.idle_minutes is not None else 5,

server/src/ledgrab/api/schemas/automations.py

@@ -30,6 +30,14 @@ class RuleSchema(BaseModel):
     # Time-of-day rule fields
     start_time: str | None = Field(None, description="Start time HH:MM (for time_of_day rule)")
     end_time: str | None = Field(None, description="End time HH:MM (for time_of_day rule)")
+    days_of_week: list[int] | None = Field(
+        None,
+        description="Active weekdays for time_of_day rule (0=Mon..6=Sun). Empty/null = every day.",
+    )
+    timezone: str | None = Field(
+        None,
+        description="IANA timezone for time_of_day rule (e.g. 'Europe/Berlin'). Empty = server local.",
+    )
     # System idle rule fields
     idle_minutes: int | None = Field(
         None, description="Idle timeout in minutes (for system_idle rule)"

server/src/ledgrab/core/automations/automation_engine.py

@@ -26,6 +26,33 @@ from ledgrab.utils import get_logger
 
 logger = get_logger(__name__)
 
+# Cache resolved IANA timezones (and remember invalid names) so the ~1 Hz
+# automation tick neither re-parses tzdata nor log-spams on a bad name.
+_TZ_CACHE: Dict[str, object] = {}
+_TZ_WARNED: set = set()
+
+
+def _now_in_tz(tz_name: str) -> datetime:
+    """Current local time, in ``tz_name`` (IANA) if given, else the server's."""
+    if not tz_name:
+        return datetime.now()
+    tz = _TZ_CACHE.get(tz_name)
+    if tz is None:
+        try:
+            from zoneinfo import ZoneInfo
+
+            tz = ZoneInfo(tz_name)
+            _TZ_CACHE[tz_name] = tz
+        except Exception:
+            if tz_name not in _TZ_WARNED:
+                _TZ_WARNED.add(tz_name)
+                logger.warning(
+                    "Invalid timezone %r for time-of-day rule; using server local time",
+                    tz_name,
+                )
+            return datetime.now()
+    return datetime.now(tz)
+
 
 @dataclass(frozen=True)
 class _RuleEvalContext:
@@ -519,16 +546,26 @@ class AutomationEngine:
 
     @staticmethod
     def _evaluate_time_of_day(rule: TimeOfDayRule) -> bool:
-        now = datetime.now()
+        now = _now_in_tz(rule.timezone)
         current = now.hour * 60 + now.minute
         parts_s = rule.start_time.split(":")
         parts_e = rule.end_time.split(":")
         start = int(parts_s[0]) * 60 + int(parts_s[1])
         end = int(parts_e[0]) * 60 + int(parts_e[1])
+        days = rule.days_of_week
+
         if start <= end:
-            return start <= current <= end
-        # Overnight range (e.g. 22:00 → 06:00)
-        return current >= start or current <= end
+            if not (start <= current <= end):
+                return False
+            return not days or now.weekday() in days
+
+        # Overnight range (e.g. 22:00 → 06:00): the window belongs to its
+        # START day, so the after-midnight tail is matched against yesterday.
+        if current >= start:  # evening portion — today's window
+            return not days or now.weekday() in days
+        if current <= end:  # early-morning portion — yesterday's window
+            return not days or ((now.weekday() - 1) % 7) in days
+        return False
 
     @staticmethod
     def _evaluate_idle(rule: SystemIdleRule, idle_seconds: float | None) -> bool:

server/src/ledgrab/static/css/automations.css

@@ -152,6 +152,50 @@
     border-left: 1px solid var(--border-color);
 }
 
+/* Weekday + timezone scheduling (time_of_day rule) */
+.rule-weekday-block,
+.rule-tz-block {
+    margin-top: 12px;
+}
+.rule-field-label {
+    display: block;
+    font-size: 0.65rem;
+    font-weight: 700;
+    text-transform: uppercase;
+    letter-spacing: 0.06em;
+    color: var(--text-muted);
+    margin-bottom: 6px;
+}
+.weekday-chips {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 6px;
+}
+.weekday-chip {
+    flex: 1 1 auto;
+    min-width: 40px;
+    padding: 6px 8px;
+    font-size: 0.75rem;
+    font-weight: 600;
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    background: var(--card-bg);
+    color: var(--text-muted);
+    cursor: pointer;
+    transition: background 0.12s, color 0.12s, border-color 0.12s;
+}
+.weekday-chip:hover {
+    border-color: var(--primary-color);
+}
+.weekday-chip.active {
+    background: var(--primary-color);
+    border-color: var(--primary-color);
+    color: #fff;
+}
+.rule-tz-block input.rule-timezone {
+    width: 100%;
+}
+
 .time-range-label {
     font-size: 0.65rem;
     font-weight: 700;

server/src/ledgrab/static/js/features/automations.ts

@@ -340,11 +340,15 @@ const RULE_CHIP_RENDERERS: Record<RuleType, RuleChipBuilder> = {
         const matchLabel = t('automations.rule.application.match_type.' + (c.match_type || 'running'));
         return { icon: _icon(P.smartphone), text: `${apps} (${matchLabel})`, title: t('automations.rule.application') };
     },
-    time_of_day: (c) => ({
-        icon: ICON_CLOCK,
-        text: `${c.start_time || '00:00'} – ${c.end_time || '23:59'}`,
-        title: t('automations.rule.time_of_day'),
-    }),
+    time_of_day: (c) => {
+        const days: number[] = Array.isArray(c.days_of_week) ? c.days_of_week : [];
+        let text = `${c.start_time || '00:00'} – ${c.end_time || '23:59'}`;
+        if (days.length && days.length < 7) {
+            text += ` · ${[...days].sort((a, b) => a - b).map((d) => t('weekday.short.' + d)).join(' ')}`;
+        }
+        if (c.timezone) text += ` · ${c.timezone}`;
+        return { icon: ICON_CLOCK, text, title: t('automations.rule.time_of_day') };
+    },
     system_idle: (c) => {
         const mode = c.when_idle !== false ? t('automations.rule.system_idle.when_idle') : t('automations.rule.system_idle.when_active');
         return { icon: ICON_TIMER, text: `${c.idle_minutes || 5}m (${mode})`, title: t('automations.rule.system_idle') };
@@ -878,6 +882,11 @@ function _renderTimeOfDayFields(container: HTMLElement, data: any): void {
     const [sh, sm] = startTime.split(':').map(Number);
     const [eh, em] = endTime.split(':').map(Number);
     const pad = (n: number) => String(n).padStart(2, '0');
+    const days: number[] = Array.isArray(data.days_of_week) ? data.days_of_week : [];
+    const tz: string = data.timezone || '';
+    const dayChips = [0, 1, 2, 3, 4, 5, 6]
+        .map((d) => `<button type="button" class="weekday-chip${days.includes(d) ? ' active' : ''}" data-day="${d}">${t('weekday.short.' + d)}</button>`)
+        .join('');
     container.innerHTML = `
         <div class="rule-fields">
             <input type="hidden" class="rule-start-time" value="${startTime}">
@@ -901,9 +910,21 @@ function _renderTimeOfDayFields(container: HTMLElement, data: any): void {
                     </div>
                 </div>
             </div>
+            <div class="rule-weekday-block">
+                <span class="rule-field-label">${t('automations.rule.time_of_day.days')}</span>
+                <div class="weekday-chips">${dayChips}</div>
+                <small class="rule-hint-desc">${t('automations.rule.time_of_day.days_hint')}</small>
+            </div>
+            <div class="rule-tz-block">
+                <label class="rule-field-label">${t('automations.rule.time_of_day.timezone')}</label>
+                <input type="text" class="rule-timezone" placeholder="${t('automations.rule.time_of_day.timezone.placeholder')}" value="${tz}">
+            </div>
             <small class="rule-hint-desc">${t('automations.rule.time_of_day.overnight_hint')}</small>
         </div>`;
     _wireTimeRangePicker(container);
+    container.querySelectorAll('.weekday-chip').forEach((chip) => {
+        chip.addEventListener('click', () => chip.classList.toggle('active'));
+    });
 }
 
 function _renderSystemIdleFields(container: HTMLElement, data: any): void {
@@ -1314,6 +1335,9 @@ const RULE_COLLECTORS: Record<RuleType, RuleCollector> = {
         rule_type: 'time_of_day',
         start_time: (row.querySelector('.rule-start-time') as HTMLInputElement).value || '00:00',
         end_time: (row.querySelector('.rule-end-time') as HTMLInputElement).value || '23:59',
+        days_of_week: Array.from(row.querySelectorAll('.weekday-chip.active'))
+            .map((el) => parseInt((el as HTMLElement).dataset.day || '0', 10)),
+        timezone: ((row.querySelector('.rule-timezone') as HTMLInputElement)?.value || '').trim(),
     }),
     system_idle: (row) => ({
         rule_type: 'system_idle',

server/src/ledgrab/static/locales/en.json

@@ -1235,6 +1235,17 @@
   "automations.rule.time_of_day.start_time": "Start Time:",
   "automations.rule.time_of_day.end_time": "End Time:",
   "automations.rule.time_of_day.overnight_hint": "For overnight ranges (e.g. 22:00–06:00), set start time after end time.",
+  "automations.rule.time_of_day.days": "Active days",
+  "automations.rule.time_of_day.days_hint": "Leave all unselected for every day. Overnight windows count toward the day they start on.",
+  "automations.rule.time_of_day.timezone": "Timezone",
+  "automations.rule.time_of_day.timezone.placeholder": "Server local (e.g. Europe/Berlin)",
+  "weekday.short.0": "Mon",
+  "weekday.short.1": "Tue",
+  "weekday.short.2": "Wed",
+  "weekday.short.3": "Thu",
+  "weekday.short.4": "Fri",
+  "weekday.short.5": "Sat",
+  "weekday.short.6": "Sun",
   "automations.rule.system_idle": "System Idle",
   "automations.rule.system_idle.desc": "User idle/active",
   "automations.rule.system_idle.idle_minutes": "Idle Timeout (minutes):",

server/src/ledgrab/static/locales/ru.json

@@ -1269,6 +1269,17 @@
   "automations.rule.time_of_day.start_time": "Время начала:",
   "automations.rule.time_of_day.end_time": "Время окончания:",
   "automations.rule.time_of_day.overnight_hint": "Для ночных диапазонов (например 22:00–06:00) укажите время начала позже времени окончания.",
+  "automations.rule.time_of_day.days": "Активные дни",
+  "automations.rule.time_of_day.days_hint": "Оставьте всё невыбранным для всех дней. Ночные окна относятся ко дню, когда они начинаются.",
+  "automations.rule.time_of_day.timezone": "Часовой пояс",
+  "automations.rule.time_of_day.timezone.placeholder": "Локальное время сервера (напр. Europe/Berlin)",
+  "weekday.short.0": "Пн",
+  "weekday.short.1": "Вт",
+  "weekday.short.2": "Ср",
+  "weekday.short.3": "Чт",
+  "weekday.short.4": "Пт",
+  "weekday.short.5": "Сб",
+  "weekday.short.6": "Вс",
   "automations.rule.system_idle": "Бездействие системы",
   "automations.rule.system_idle.desc": "Бездействие/активность",
   "automations.rule.system_idle.idle_minutes": "Тайм-аут бездействия (минуты):",

server/src/ledgrab/static/locales/zh.json

@@ -1265,6 +1265,17 @@
   "automations.rule.time_of_day.start_time": "开始时间：",
   "automations.rule.time_of_day.end_time": "结束时间：",
   "automations.rule.time_of_day.overnight_hint": "跨夜时段（如 22:00–06:00），请将开始时间设为晚于结束时间。",
+  "automations.rule.time_of_day.days": "生效日期",
+  "automations.rule.time_of_day.days_hint": "全部不选表示每天生效。跨夜时段归属于其开始的那一天。",
+  "automations.rule.time_of_day.timezone": "时区",
+  "automations.rule.time_of_day.timezone.placeholder": "服务器本地时间（如 Europe/Berlin）",
+  "weekday.short.0": "周一",
+  "weekday.short.1": "周二",
+  "weekday.short.2": "周三",
+  "weekday.short.3": "周四",
+  "weekday.short.4": "周五",
+  "weekday.short.5": "周六",
+  "weekday.short.6": "周日",
   "automations.rule.system_idle": "系统空闲",
   "automations.rule.system_idle.desc": "空闲/活跃",
   "automations.rule.system_idle.idle_minutes": "空闲超时（分钟）：",

server/src/ledgrab/storage/automation.py

@@ -65,27 +65,40 @@ class ApplicationRule(Rule):
 
 @dataclass
 class TimeOfDayRule(Rule):
-    """Activate during a specific time range (server local time).
+    """Activate during a specific time range.
 
     Supports overnight ranges: if start_time > end_time, the range wraps
-    around midnight (e.g. 22:00 → 06:00).
+    around midnight (e.g. 22:00 → 06:00) — an overnight window belongs to the
+    day it *starts* on. ``days_of_week`` (0=Mon .. 6=Sun, empty = every day)
+    restricts which days the window is active. ``timezone`` is an IANA name
+    (e.g. "Europe/Berlin"); empty = the server's local time.
     """
 
     rule_type: str = "time_of_day"
     start_time: str = "00:00"  # HH:MM
     end_time: str = "23:59"  # HH:MM
+    days_of_week: List[int] = field(default_factory=list)  # 0=Mon..6=Sun; empty=all days
+    timezone: str = ""  # IANA tz name; empty = server local time
 
     def to_dict(self) -> dict:
         d = super().to_dict()
         d["start_time"] = self.start_time
         d["end_time"] = self.end_time
+        d["days_of_week"] = self.days_of_week
+        d["timezone"] = self.timezone
         return d
 
     @classmethod
     def from_dict(cls, data: dict) -> "TimeOfDayRule":
+        raw_days = data.get("days_of_week") or []
+        days = sorted(
+            {int(d) for d in raw_days if isinstance(d, (int, float)) and 0 <= int(d) <= 6}
+        )
         return cls(
             start_time=data.get("start_time", "00:00"),
             end_time=data.get("end_time", "23:59"),
+            days_of_week=days,
+            timezone=data.get("timezone", "") or "",
         )
 
 

server/tests/test_time_of_day_schedule.py

@@ -0,0 +1,78 @@
+"""Tests for time-of-day automation scheduling (weekday + timezone + overnight)."""
+
+import datetime as dt
+
+from ledgrab.core.automations import automation_engine as ae
+from ledgrab.core.automations.automation_engine import AutomationEngine, _now_in_tz
+from ledgrab.storage.automation import TimeOfDayRule
+
+_eval = AutomationEngine._evaluate_time_of_day
+
+
+def _patch_now(monkeypatch, fixed: dt.datetime) -> None:
+    monkeypatch.setattr(ae, "_now_in_tz", lambda tz: fixed)
+
+
+def test_within_window_every_day(monkeypatch):
+    _patch_now(monkeypatch, dt.datetime(2026, 6, 3, 20, 0))
+    assert _eval(TimeOfDayRule(start_time="18:00", end_time="23:00")) is True
+
+
+def test_outside_window(monkeypatch):
+    _patch_now(monkeypatch, dt.datetime(2026, 6, 3, 12, 0))
+    assert _eval(TimeOfDayRule(start_time="18:00", end_time="23:00")) is False
+
+
+def test_weekday_filter(monkeypatch):
+    fixed = dt.datetime(2026, 6, 3, 20, 0)
+    wd = fixed.weekday()
+    _patch_now(monkeypatch, fixed)
+    assert _eval(TimeOfDayRule("time_of_day", "18:00", "23:00", days_of_week=[wd])) is True
+    assert (
+        _eval(TimeOfDayRule("time_of_day", "18:00", "23:00", days_of_week=[(wd + 1) % 7])) is False
+    )
+
+
+def test_overnight_evening_uses_today(monkeypatch):
+    fixed = dt.datetime(2026, 6, 3, 23, 0)  # evening tail of a 22:00->06:00 window
+    wd = fixed.weekday()
+    _patch_now(monkeypatch, fixed)
+    assert _eval(TimeOfDayRule("time_of_day", "22:00", "06:00", days_of_week=[wd])) is True
+    assert (
+        _eval(TimeOfDayRule("time_of_day", "22:00", "06:00", days_of_week=[(wd + 1) % 7])) is False
+    )
+
+
+def test_overnight_morning_uses_yesterday(monkeypatch):
+    fixed = dt.datetime(2026, 6, 3, 3, 0)  # morning tail belongs to yesterday's window
+    today = fixed.weekday()
+    yesterday = (today - 1) % 7
+    _patch_now(monkeypatch, fixed)
+    assert _eval(TimeOfDayRule("time_of_day", "22:00", "06:00", days_of_week=[yesterday])) is True
+    assert _eval(TimeOfDayRule("time_of_day", "22:00", "06:00", days_of_week=[today])) is False
+
+
+def test_from_dict_filters_invalid_days():
+    rule = TimeOfDayRule.from_dict({"days_of_week": [0, 7, -1, 3, 3, "x", 2.0]})
+    assert rule.days_of_week == [0, 2, 3]
+
+
+def test_to_dict_round_trips_new_fields():
+    rule = TimeOfDayRule("time_of_day", "08:00", "20:00", days_of_week=[1, 2], timezone="UTC")
+    d = rule.to_dict()
+    assert d["days_of_week"] == [1, 2]
+    assert d["timezone"] == "UTC"
+    again = TimeOfDayRule.from_dict(d)
+    assert again.days_of_week == [1, 2] and again.timezone == "UTC"
+
+
+def test_now_in_tz_invalid_falls_back_to_local():
+    assert _now_in_tz("Not/AZone").tzinfo is None
+
+
+def test_now_in_tz_valid_is_aware():
+    assert _now_in_tz("UTC").tzinfo is not None
+
+
+def test_now_in_tz_empty_is_local():
+    assert _now_in_tz("").tzinfo is None