Support multiple daily sync times (e.g., "daily 07:00,13:00,18:00")

Scheduler now accepts comma-separated HH:MM times in daily schedules.
Each time slot is independently evaluated - if any slot has passed and
last_sync is before it, the table is marked as due.

This lets tables sync multiple times per day to pick up data refreshes
that happen throughout the day (e.g., Keboola pipelines running 3x/day).

src/scheduler.py

@@ -8,6 +8,7 @@ Schedule formats:
     "every 15m"            - every 15 minutes
     "every 1h"             - every hour
     "daily 05:00"          - once per day at 05:00 UTC
+    "daily 07:00,13:00,18:00" - multiple times per day (UTC)
 """
 
 import logging
@@ -20,8 +21,8 @@ logger = logging.getLogger(__name__)
 # Pattern: "every 15m", "every 2h"
 INTERVAL_PATTERN = re.compile(r"^every (\d+)([mh])$")
 
-# Pattern: "daily 05:00", "daily 17:30"
+# Pattern: "daily 05:00", "daily 17:30", "daily 07:00,13:00,18:00"
-DAILY_PATTERN = re.compile(r"^daily (\d{2}):(\d{2})$")
+DAILY_PATTERN = re.compile(r"^daily ([\d:,]+)$")
 
 
 def parse_interval_minutes(schedule: str) -> Optional[int]:
@@ -87,51 +88,62 @@ def is_table_due(
             )
         return due
 
-    # Check daily schedule: "daily HH:MM"
+    # Check daily schedule: "daily HH:MM" or "daily HH:MM,HH:MM,..."
     match = DAILY_PATTERN.match(schedule)
     if match:
-        target_hour = int(match.group(1))
+        times_str = match.group(1)
-        target_minute = int(match.group(2))
+        target_times = _parse_daily_times(times_str)
-        return _is_daily_due(last_sync, now, target_hour, target_minute)
+        if not target_times:
+            logger.warning(f"Invalid daily schedule times: {schedule}")
+            return False
+        return _is_daily_due(last_sync, now, target_times)
 
     logger.warning(f"Unknown schedule format: {schedule}")
     return False
 
 
+def _parse_daily_times(times_str: str) -> list[tuple[int, int]]:
+    """Parse comma-separated HH:MM times into list of (hour, minute) tuples."""
+    time_pattern = re.compile(r"^(\d{2}):(\d{2})$")
+    result = []
+    for part in times_str.split(","):
+        m = time_pattern.match(part.strip())
+        if not m:
+            return []
+        hour, minute = int(m.group(1)), int(m.group(2))
+        if hour > 23 or minute > 59:
+            return []
+        result.append((hour, minute))
+    return result
+
+
 def _is_daily_due(
     last_sync: datetime,
     now: datetime,
-    target_hour: int,
+    target_times: list[tuple[int, int]],
-    target_minute: int,
 ) -> bool:
     """Check if a daily schedule is due.
 
-    A daily schedule at HH:MM is due when:
+    Supports multiple target times per day. A target time is due when:
     1. Current time is at or past HH:MM today, AND
     2. Last sync was before HH:MM today
 
-    This means: once HH:MM passes, the first scheduler tick will trigger it,
+    Returns True if ANY of the target times is due.
-    and subsequent ticks on the same day will skip it.
     """
-    # Today's target time
+    for target_hour, target_minute in target_times:
         today_target = now.replace(
             hour=target_hour, minute=target_minute, second=0, microsecond=0
         )
 
-    # Not yet time today
+        if now >= today_target and last_sync < today_target:
-    if now < today_target:
-        return False
-
-    # Time has passed, check if we already synced after today's target
-    if last_sync >= today_target:
-        return False
-
             logger.debug(
                 f"Daily schedule: target {target_hour:02d}:{target_minute:02d} UTC, "
                 f"last sync {last_sync.isoformat()}, now {now.isoformat()} -> due"
             )
             return True
 
+    return False
+
 
 def _parse_timestamp(iso_string: str) -> Optional[datetime]:
     """Parse an ISO timestamp string, handling various formats.

tests/test_scheduler.py

@@ -7,6 +7,7 @@ import pytest
 
 from src.scheduler import (
     _is_daily_due,
+    _parse_daily_times,
     _parse_timestamp,
     is_table_due,
     parse_interval_minutes,
@@ -229,27 +230,85 @@ class TestIsDailyDue:
     def test_before_target_not_due(self) -> None:
         now = datetime(2026, 3, 15, 4, 0, 0, tzinfo=timezone.utc)
         last_sync = datetime(2026, 3, 14, 5, 30, 0, tzinfo=timezone.utc)
-        assert _is_daily_due(last_sync, now, target_hour=5, target_minute=0) is False
+        assert _is_daily_due(last_sync, now, [(5, 0)]) is False
 
     def test_after_target_last_sync_before_target_is_due(self) -> None:
         now = datetime(2026, 3, 15, 6, 0, 0, tzinfo=timezone.utc)
         last_sync = datetime(2026, 3, 15, 4, 0, 0, tzinfo=timezone.utc)
-        assert _is_daily_due(last_sync, now, target_hour=5, target_minute=0) is True
+        assert _is_daily_due(last_sync, now, [(5, 0)]) is True
 
     def test_after_target_last_sync_after_target_not_due(self) -> None:
         now = datetime(2026, 3, 15, 6, 0, 0, tzinfo=timezone.utc)
         last_sync = datetime(2026, 3, 15, 5, 30, 0, tzinfo=timezone.utc)
-        assert _is_daily_due(last_sync, now, target_hour=5, target_minute=0) is False
+        assert _is_daily_due(last_sync, now, [(5, 0)]) is False
 
     def test_target_with_minutes(self) -> None:
         now = datetime(2026, 3, 15, 17, 45, 0, tzinfo=timezone.utc)
         last_sync = datetime(2026, 3, 15, 10, 0, 0, tzinfo=timezone.utc)
-        assert _is_daily_due(last_sync, now, target_hour=17, target_minute=30) is True
+        assert _is_daily_due(last_sync, now, [(17, 30)]) is True
 
     def test_target_with_minutes_not_yet(self) -> None:
         now = datetime(2026, 3, 15, 17, 15, 0, tzinfo=timezone.utc)
         last_sync = datetime(2026, 3, 15, 10, 0, 0, tzinfo=timezone.utc)
-        assert _is_daily_due(last_sync, now, target_hour=17, target_minute=30) is False
+        assert _is_daily_due(last_sync, now, [(17, 30)]) is False
+
+
+class TestMultipleDailyTimes:
+    """Tests for multiple daily schedule times."""
+
+    def test_multi_time_first_due(self) -> None:
+        now = datetime(2026, 3, 15, 8, 0, 0, tzinfo=timezone.utc)
+        last_sync = datetime(2026, 3, 14, 19, 0, 0, tzinfo=timezone.utc)
+        assert _is_daily_due(last_sync, now, [(7, 0), (13, 0), (18, 0)]) is True
+
+    def test_multi_time_second_due(self) -> None:
+        now = datetime(2026, 3, 15, 14, 0, 0, tzinfo=timezone.utc)
+        last_sync = datetime(2026, 3, 15, 7, 30, 0, tzinfo=timezone.utc)
+        assert _is_daily_due(last_sync, now, [(7, 0), (13, 0), (18, 0)]) is True
+
+    def test_multi_time_third_due(self) -> None:
+        now = datetime(2026, 3, 15, 19, 0, 0, tzinfo=timezone.utc)
+        last_sync = datetime(2026, 3, 15, 13, 30, 0, tzinfo=timezone.utc)
+        assert _is_daily_due(last_sync, now, [(7, 0), (13, 0), (18, 0)]) is True
+
+    def test_multi_time_between_slots_not_due(self) -> None:
+        now = datetime(2026, 3, 15, 10, 0, 0, tzinfo=timezone.utc)
+        last_sync = datetime(2026, 3, 15, 7, 30, 0, tzinfo=timezone.utc)
+        assert _is_daily_due(last_sync, now, [(7, 0), (13, 0), (18, 0)]) is False
+
+    def test_multi_time_all_done_not_due(self) -> None:
+        now = datetime(2026, 3, 15, 20, 0, 0, tzinfo=timezone.utc)
+        last_sync = datetime(2026, 3, 15, 18, 30, 0, tzinfo=timezone.utc)
+        assert _is_daily_due(last_sync, now, [(7, 0), (13, 0), (18, 0)]) is False
+
+    def test_is_table_due_multi_time_format(self) -> None:
+        now = datetime(2026, 3, 15, 14, 0, 0, tzinfo=timezone.utc)
+        last_sync = datetime(2026, 3, 15, 7, 30, 0, tzinfo=timezone.utc).isoformat()
+        assert is_table_due("daily 07:00,13:00,18:00", last_sync_iso=last_sync, now=now) is True
+
+    def test_is_table_due_multi_time_not_due(self) -> None:
+        now = datetime(2026, 3, 15, 10, 0, 0, tzinfo=timezone.utc)
+        last_sync = datetime(2026, 3, 15, 7, 30, 0, tzinfo=timezone.utc).isoformat()
+        assert is_table_due("daily 07:00,13:00,18:00", last_sync_iso=last_sync, now=now) is False
+
+
+class TestParseDailyTimes:
+    """Tests for _parse_daily_times()."""
+
+    def test_single_time(self) -> None:
+        assert _parse_daily_times("05:00") == [(5, 0)]
+
+    def test_multiple_times(self) -> None:
+        assert _parse_daily_times("07:00,13:00,18:00") == [(7, 0), (13, 0), (18, 0)]
+
+    def test_invalid_format(self) -> None:
+        assert _parse_daily_times("7:00") == []
+
+    def test_invalid_hour(self) -> None:
+        assert _parse_daily_times("25:00") == []
+
+    def test_invalid_minute(self) -> None:
+        assert _parse_daily_times("12:60") == []
 
 
 # ---------------------------------------------------------------------------